[1] McMahon is also a longstanding fixture on the Phoenix broadcasting scene, where he has worked at KRIZ, KOY, and KTAR radio stations—serving as program director, disc jockey, and talk-show host, among other positions.
[4] McMahon's broadcasting career began while he was in college when he took a job as a disc jockey at Davenport radio station KSTT.
They decided they needed a third person to play various characters in the skits they performed between cartoons, and McMahon was incorporated into the show.
By the time Wallace and Ladmo, as it came to be known, went off the air almost 30 years later, McMahon had played dozens of characters, including "Boffo the Clown, a clown who hated children; Marshall Good, the cowboy from New Jersey who always bummed quarters from kids; Captain Super, the right-wing superhero that needed a night-light to sleep; and Aunt Maud, the senior citizen that told twisted fairy tales.
The band recorded several singles and made appearances on Tonight Starring Steve Allen and The Joey Bishop Show.