Joyce began his Bay Area radio career in the 1970s at
KALX, where he worked as an on-air programmer, and produced station IDs, promotional spots and other continuity. At KALX, he produced a weekly summer replacement program for the news called
The Alternative News, featuring fictional news stories. The last episode of
The Alternative News included the eco-revolutionary character Thunderman, which led to his producing a multipart serial called
Thunderteam for
KPFA. While working at KPFA, he met Ian Allen and other members of Negativland. Joyce began developing his
sound collage techniques using radio and television broadcasts captured on tape and blending them into layered mixes, each with a unique theme. Heavily influenced by
Bob and Ray and the
Firesign Theater, Joyce developed a number of continuing characters whom he would portray in the more theatrical episodes of
Over The Edge. In 1984, he coined the phrase
culture jamming. ==Death==