David has appeared as a guest on shows like Comedy Central's Premium Blend. He participated in the reality competition show called Last Comic Standing. He was a writer for The Benson Interruption and Comedy Central. He has three comedy CDs, Hello Robot released in 2005, Humanitis released in 2011, and Explosion Land released in 2013. He is the host of the SyFy channel's Reactor show, and the co-host of the podcast Professor Blastoff.