Baum has appeared in several television programs since the early 1980s, including The Stockard Channing Show, Growing Pains, Full House, and Northern Exposure. He also appeared as an animated version of himself on The Simpsons, guest-starring with Jay Leno, Janeane Garofalo, Steven Wright, and Bobcat Goldthwait in the episode "The Last Temptation of Krusty".