In 1997 Arj appeared on Premium Blend, and appearances on Late Night with Conan O’Brien and The Glass House. He was the host of Comedy Central Presents on two different occasions first on September 20, 2000 and again on March 31, 2006. Comedy Central featured Arj in their animated series Shorties Watchin’ Shorties. He appeared three times on the Australian show Thank God You’re Here. Barker co-wrote and performed in the Off-Broadway show The Marijuanna-Logues. He played the character known as Dave on the HBO sitcom Flight of the Conchords.