|Appearances||Writer: 48 episodes, 1996-2002|
|Roles||Actor: Robot 790, 58 episodes|
Hirschfield co-created El Mundo del Lundo for Canada's Comedy Network, on which he also performed. Further writing credits include The Outer Limits, I Was A Sixth Grade Alien, Olliver's Adventures and Starhunter. He has written a number of stage plays and radio dramas.
Hirschfield is also creator of the live action/animation sci-fi adventure series Zixx and served as series story editor and wrote five of the first thirteen episodes.