WYOO AM/FM (U100)

This page is dedicated to WYOO AM/FM Radio, more popularly known as "U100." During its brief but memorable run, U100 became known for its bold, high-energy “Rock 40” format, blending current Top 40 hits with album-rock selections. Its colorful, sometimes outrageous personalities, irreverent humor, and rebellious spirit set it apart from other stations of the time. Although U100 was on the air for only two years (1974–1976), it left a lasting impression on the Twin Cities airwaves and is still fondly remembered and talked about today. Relive U100 by listening to the first minutes of the station, its final day on the air, and many hours of programming from the two years in between.

JINGLES

Top of Hour Jingle - Rob Sherwood (:24) • Boogie Check Jingle (:15)

U100 Jingle (:05) (provided by Jay Philpott)

The following jingles provided by Bob Rivard:

Top of Hour Jingle (:24) • 24 Hours A Day Jingle (:60) • U100 Jingle (:02)

Fun Loving Super U: #1 (:59) - #2 (:13) - #3 (:12) - #4 (:07) - #5 (:07) - #6 (:07) - #7 (:06)

Super Summer: #1 (:27) - #2 (:12)

Right On Super U: #1 (:11) - #2 (:08) - #3 (:07) - #4 (:06) - #5 (:02)

FIRST DAY OF U100: AUGUST 26, 1974

First Day of U100 (Switch from oldies format to U100 as heard on 101.3 FM) (provided by Danny Sigelman)

First Day of U100 (Switch from oldies format to U100 as heard on 980 AM) (provided by Ron Gerber/Danny Sigelman)

FINAL DAY OF U100: SEPTEMBER 15, 1976

7-9 AM Rob Sherwood - Michael J. Douglas

9 AM-Noon Brother Bob Hall - Michael J, Douglas

12-12:40 PM Gary DeMaroney

3-4 PM Gary DeMaroney

4-8 PM Pat McKay

8-11 PM Jo Jo Gunne

11 PM-MID Jo Jo Gunne - Final Hour of Broadcasting

AFTER U100 - SEPTEMBER 16, 1976

Recordings from KDWB-AM and KDWB-FM after U100 left the air (provided by Bob Rivard)

KDWB-AM (Midnight - Right after U100 signed off - 630 AM)

KDWB-FM (6 AM - Start of simulcast on 630 AM and 101.3 FM)

BOOGIE CHECK

Boogie Check (1976) - Gary Marshall

Boogie Check (1975) Jeff "Mother" Robbins - #1 - #2

Boogie Check (1976) Jo Jo Gunne - #1 - #2 - #3 - #4 - #5 - #6 - #7 - #8

Boogie Check (1976) Jo Jo Gunne and Pat McKay - an outrageous Boogie Check.

Boogie Check reporter interviews KSTP-AM and KDWB-AM (1975)

BOOGIE BATTLE

Boogie Battle I (Oct. 1974 - Captain Billy, Brother Bob) (provided by Ron Gerber/Danny Sigelman)

Boogie Battle II (1975 - Brother Bob)

JERRY BROOKE

Jerry Brooke - (1975)

CAPTAIN BILLY

Captain Billy and Michael J. Douglas (10/25/1974). This aircheck includes newscasts with Michael, Super Soup Stars Contest, a visit from Truman the K (voiced by Rob Sherwood), and more. (provided by Al Arneson)

Captain Billy - (1975)

DAVE COOPER

Dave Cooper (12/25/1975) (provided by Stuart Held)

BIG AL DAVIS

Big Al Davis (1976)

Big Al Davis (August 1976)

GARY DEMARONEY

Gary DeMaroney (1976) (provided by Jay Philpott)

Gary DeMaroney (1976) (provided by Bob Rivard)

Gary DeMaroney (1976) (provided by Ron Gerber/Danny Sigelman)

MICHAEL J. DOUGLAS

Michael J. Douglas & Brother Bob (1976) (provided by Curt Lundgren)

Michael J. Douglas, Brother Bob & Chucker Morgan (1976) (provided by Ron Gerber/Danny Sigelman)

JO JO GUNNE

Jo Jo Gunne(1976) (provided by Danny Sigelman)

Jo Jo Gunne (1976) #1 (provided by Bob Rivard) - #2 (provided by Jeff R. Lonto) - #3 (provided by Jim Beer)

More Jo Jo Gunne: See "Boogie Check"

BROTHER BOB HALL

Brother Bob (1974) (provided by Curt Lundgren)

Brother Bob - (1975)

Brother Bob - (December 21, 1974) Includes commercials for Dynamite (album) from K-Tel, Trident Sugarless Gum, Schick Flexamatic, and JC Penney Record Department. (provided by Mark Hopkins)

Brother Bob Hall at the Minnesota State Fair (September 1, 1975) Includes commercials for Earthborn Shampoo, Earthborn Conditioner, Grain Belt, and WTCN Metromedia 11

A woman sitting in front of a microphone.

MESA KINCAID

Mesa Kincaid (1976) (provided by Curt Lundgren)

Mesa Kincaid (July 1976) Includes commercials for Alice in Wonderland (X-rated movie), Orange Crush, Yes and Montrose at the St. Paul Civic Center, Sugar Free 7-Up, and Brainerd International Raceway. (provided by Curt Lundgren)

Mesa Kincaid (9/5/1976)

GARY MARSHALL

Gary Marshall - Boogie Check (1976) and Sign Off (1976)

PAT MCKAY

"Great Record Battle" with Pat McKay (1975) (provided by Danny Sigelman)

Includes newscast plus commercials for Knights Formal Wear and Triangle Bar.

Pat McKay (1976) (provided by Ron Gerber/Danny Sigelman)

Pat McKay & Michael J. Douglas (April 1976) (provided by Ron Gerber/Danny Sigelman)

MISCELLANEOUS

Demo Tape (1975) featuring Captain Billy, Jerry Brooke, Brother Bob, Rob Sherwood, Chucker Morgan and Steve (U.S.) Steele. (provided by Danny Sigelman)

Endless Summer '76 Announcement (1976 - Rob Sherwood, Mike Sigelman)

Halloween Special with Rob Sherwood and US Steele - (1974) (provided by Danny Sigelman)

A Christmas Carol (1974) including Rob Sherwood, Steve "US" Steele, Michael J. Douglas, Captain Billy, Jerry Brooke, Art Snow, "Brother" Bob Hall and more. (provided by Danny Sigelman)

Kegger Party (1975) #1 - #2 (provided by Ron Gerber(opens in new tab)/Danny Sigelman)

Stop The Music (1975 - Chucker Morgan, Rob Sherwood)

Sign Off (1976 - Gary Marshall - sign off for technical adjustments).

CHUCKER MORGAN

Chucker Morgan (1975)

Chucker Morgan / Boogie Battle (1975) #1 - #2 (provided by Ron Gerber/Danny Sigelman)

Chucker Morgan at the Minnesota State Fair (1975). Includes commercials for Dayton's, Orange Crush, Minnesota Dragways and Hurrah. (provided by Danny Sigelman)

Chucker Morgan at the Minnesota State Fair (September 1, 1975)

Chucker Morgan & Jo Jo Gunne (3/20/1976) (provided by Ron Gerber/Danny Sigelman)

RON "KILLER" RICHARDS

Ron "Killer" Richards

A young man with long hair and a shirt on.

JEFF "MOTHER" ROBBINS

Jeff "Mother" Robbins (Aug. 1974 - Live from Minnesota State Fair) - (provided by Ron Gerber/Danny Sigelman)

Jeff "Mother" Robbins (1974) - (provided by Curt Lundgren)

Jeff "Mother" Robbins - See "Boogie Check"

Jeff 'Mother' Robbins and U.S. Steele (1975) (provided by Ron Gerber/Danny Sigelman)

Jeff "Mother" Robbins' final day (1975) (provided by Danny Sigelman)

JERRY ST. JAMES

Jerry St. James passed away earlier this year on January 4, 2026 at the age of 74. His real name was Jerry Cesak. Read about Jerry and his award-winning radio career including a tribute video HERE

Jerry St. James & Michael J. Douglas - (December 1974). Includes Rex King performing the "Night Before Christmas" Julie Child-like, newscast with Michael J. Douglas, and commercials for Mustang II, Schaak Electronics, and Listerex. (provided by Danny Sigelman)

Jerry St. James-Michael J. Douglas (Aug. 1975 - featuring "Rex King") (provided by Ron Gerber(opens in new tab)/Danny Sigelman)

Jerry St. James-Michael J. Douglas (1975 - featuring "Betty")

Jerry St. James-Michael J. Douglas (1975 - featuring "Guido" and School Menus)

Jerry St. James & Michael J. Douglas (1975) (provided by Ron Gerber(opens in new tab)/Danny Sigelman)

Jerry St. James (September 22, 1975) featuring an entire show minus music and commercials. The show includes news with Michael J. Douglas (Gerald Ford is President, Patty Hearst had just been captured, former President Nixon is fighting to prevent the release of presidential papers and tapes, and more). Plus, Rex King The Singing Weatherman; school lunch menus with Helen, Irma, and Betty; Hot Flash News of the Morning, and more. #1 - #2 (opens in new tab) (provided by Danny Sigelman)

Jerry St. James and Michael J. Douglas from November 25, 1975. This aircheck includes newscasts with Michael J. Douglas, School Lunch Menus, Rex King the Singing Weatherman, Guido, Hot Flash News of the Morning, Television Worst Sex and Scandals, and All Request News. (provided by Danny Sigelman) #1 #2

Please note that this recording was made on a skimmer/logger machine at U100, so the audio quality is rough and not studio-quality. The sound is more similar to a pocket 1970s transistor radio. However, for fans of Jerry St. James and his comedy, we hope you will enjoy the recording..

Jerry St. James & Michael J. Douglas - (December 1975). Includes Rex King and his daughter Cindy, a sportscast with Michael J. Douglas, and commercials for Midland Records and 20th Century Motors. (provided by Danny Sigelman)

Jerry St. James as "Rex King" with The Night Before Christmas (1975) (provided by Tim Edwards)

Jerry St. James and Michael J. Douglas (1976) with school lunch cooks Betty and Irma and reading Twin Cities area school lunch menus. (provided by Danny Sigelman)

Jerry St. James and Michael J. Douglas (January 14, 1976) with school lunch cooks Betty and Irma and reading Twin Cities area school lunch menus (with lots of sound effects), Rex King (The World’s Only Singing Weatherman), Julia Child-like, and Hot Flash News of the Morning. #1 - #2 Includes commercials for the Stand Theater in downtown St. Paul showing The Concert for Bangladesh, The Ten Commandments, and Juicy Fruit Gum. (provided by Danny Sigelman)

Jerry St. James, Sherwood, etc. - St. Jude’s Radiothon (Feb. 1976) #1 - #2 (provided by Ron Gerber(opens in new tab)/Danny Sigelman)

Jerry St. James and Michael J. Douglas (March 5, 1976) with school lunch cooks Betty and Irma and reading Twin Cities area school lunch menus (with lots of sound effects), Rex King (The World’s Only Singing Weatherman), and Hot Flash News of the Morning. Includes commercials for The Zoo, Tompall and The Outlaw Band, Twin City Honda, Schaak Electronics, Stereo Buys, Midland Records, Juicy Fruit Gum, Ford and Lincoln Mercury Dealers, and Gable and Lombard (movie). #1 - #2 (provided by Danny Sigelman)

Jerry St. James (1976 - Final Show) (provided by Ron Gerber(opens in new tab)/Danny Sigelman)

A green and white advertisement for the radio station wyoo.

Rob Sherwood

Rob Sherwood - (1975)

Rob Sherwood at the Minnesota State Fair - (1975) Includes commercials for K-TEL "Goofy Greats" album, White Castle, Ford Pickups (sung by Merle Haggard), Clockwork Orange and Deliverance (movies). (provided by Danny Sigelman)

Rob Sherwood Saturday Night Show (1975) Includes commercials for Pepsi Cola and Alvin Lee & Co. at the St. Paul Civic Center. (provided by Danny Sigelman)

Rob Sherwood-Jeff 'Mother' Robbins (9/1/1975) (provided by Ron Gerber/Danny Sigelman)

Rob Sherwood (September 22, 1975) The show includes an interview with Alan Gorrie from the Average White Band. (provided by Danny Sigelman)

Rob Sherwood & Mesa Kincaid - (1976) Includes commercials for Coca-Cola and The Nail Restaurant. (provided by Danny Sigelman)

Rob Sherwood/Michael J. Douglas (1976) - #1 - #2 (provided by Ron Gerber/Danny Sigelman)

Rob Sherwood/Michael J. Douglas (1976) (provided by Ron Gerber/Danny Sigelman)

Rob Sherwood & Michael J. Douglas - (1976) Includes a commercial for Tenpenney Two Restaurant. (provided by Danny Sigelman).

Rob Sherwood (1976)

Click on above image to access Rob Sherwood's website.

Rob's Blog (U100 Stories): Parts 13 14 15 16

ART SNOW

The Snowman (Art Snow) (1974)

U.S. STEELE

U.S. Steele - (1975)

U.S. Steele

BEFORE U100

WPBC AM (980) & FM (101.3)

To listen to recordings of WPBC from the first day of broadcasting in 1949 to the last in 1972, CLICK HERE.

WYOO AM (980)

11/3/1972: Final minutes of WPBC-AM and start of WYOO-AM - 27 MB (by Phil Kitchen)

1972-1973: WYOO-AM Jingles #1 (:07) - #2 (:05) (provided by Bob Rivard)

1972-1973: WYOO-AM Jingles - Two Jingles (provided by Mark Durenberger)

12/15/1972: WYOO-AM - Bob Chase (provided by Jeff R. Lonto)

September 1973: WYOO-AM - Bob Chase (provided by Jeff R. Lonto)

8/24/73: WYOO-AM - Dick Clark (later known as Mike Ryan) (provided by Jeff R. Lonto)

WYOO AM (980) Continued

11/30/73: WYOO-AM - Michael O'Shea, Bob Chase and Gary Wilcox "golden oldies format" including news and sportscasts from November 30, 1973. Includes commercials for Pizza Hut; Dayton's Record and Tape Department; Oldies But Goodies LPs available at Montgomery Ward, Zayre Shoppers' City and Dayton's; and Dart Sport Convertible at Twin City Dodge Dealer. (provided by Danny Sigelman)

1974: WYOO-AM - Jerry Brooke & Art Snow (provided by Ron Gerber / Danny Sigelman)

1974: WYOO-AM - Bill Lake (provided by Curt Lundgren)

4/15/1974: WYOO-AM - Rob Sherwood's first day (five months later, Rob changed the format to U100). (provided by Danny Sigelman)

WRAH FM (101.3)

1973: WRAH-FM - Aircheck (provided by Brian Person)

1974: WRAH-FM - Aircheck

1974 Minnesota State Fair

A group of people standing around a food truck.

A group of people standing around a food stand.

Three young women posing in front of a radio station.

1975 Minnesota State Fair

A woman is standing in front of a counter.

A red table with many different electronic equipment on it.

U100 Studio - Photo provided by Mark Vollmer

A building with a car parked in front of it.

U100 Building

A desk with a record player and radio on it.

U100 Building

A large electrical panel with many wires and switches.

Transmitter

A wall with many different colored writing on it.

Studio Wall

A wall with several black and white photos of people.

Lobby Wall

U100 Grabs Me T-Shirts

A man wearing a t-shirt with hands on it.

(courtesy Mark Betzold)

A white t-shirt with hands and the words " u 1 0 0 " on it.

(courtesy Bob Vesely)

A t-shirt with the words " u 1 0 0 " on it.

(courtesy Mark Hopkins

A poster of the name " u 1 0 0 outrageous !"

Poster 1976

Sticker

Belt Buckle

A metal plaque with the word " 1 0 0 " written in it.

(provided by John Galt)

A belt buckle with the word " u 1 0 0 ".

A belt buckle with the words " bhaloc " written on it.

A woman in a green dress and a man in an orange suit

U100 (WYOO AM/FM) TELEVISION COMMERCIALS FROM 1974-1975

Eight :30 U100 (WYOO AM/FM) television commercials from 1974-1975. A few are pretty outrageous. RadioTapes and TC Media Now partnered to have them professionally digitized and are now available for viewing. Thank you to Danny Sigelman for finding and providing the almost 50-year-old video reels saved by his father, Mike Sigelman, who was general manager at U100. Enjoy!

(Click HERE or on the image to view the commercials)

Commercials feature Sharon Anderson (first commercial), Loni Anderson (third commercial - AM Mono), Rob Sherwood and Brother Bob Hall (Boogie Battle), and Jerry St. James and Michael J. Douglas (bed commercial). Announcers include Rob Sherwood and Brother Bob Hall.

U100 Billboard and Bus Sign Images from Approximately 1975

(provided by Danny Sigelman)

CLICK ON IMAGE TO ENLARGE

A red bus with graffiti on the side of it.

A bus with the words " outrageous " painted on it.

A bus with advertisements on the side of it.

A red bus is parked on the side of the road.

A group of people standing on the sidewalk near a tree.

A bus is driving down the street with people walking around.

Bob Rivard sent the photos below. When he saw the U100 bus billboard image posted above, he knew he had to have one for his 1977 era HO scale model railroad. Paul reduced the image to exact HO scale. Here it is on his GMC “fishbowl” 4B Johnson-Bryant HO scale bus.

A toy bus is on the tracks near a train crossing.

NEWSPAPER ARTICLES AND MORE (click on images to enlarge)

A newspaper article about the radio station

A newspaper with the headline " 1 0 0 radio leaks the sleight school ".

A green car parked in front of a building.

TOP 500 SONGS COUNTDOWN (Front)

A blue and yellow sticker with the words super u 1 0 0 written in pink.

TOP 500 SONGS COUNTDOWN (Back)

A pink sheet with the names of 1 0 0 top artists.

A pair of posters for the super u 1 0 0.

WYOO-AM/FM - U100 (980/101.3) - Advertising rate cards October 1, 1974 - PDF File (provided by Danny Sigelman)

A close up of the back cover of an old radio

400,000 Busy Signals Sales Piece October 1974 - PDF File (provided by Danny Sigelman)

A yellow sheet with instructions for public interest by super u 1 0 0.

Ad that appeared in Little Bits magazine around January 1975 (provided by Cindy Saba-Stoewer)

Newspaper ad from U100 responding to reports that the station had been sold, appearing in the April 30, 1976 issue of the Entertainer, the paper that eventually became Twin Cities Reader - JPEG File (provided by Jeff R. Lonto)