Conversation so far:
What was Jeff Dunham doing in 2009?
Dunham signed a multi-platform deal with Comedy Central.
What was the shows name?
The Jeff Dunham Show.
How many viewers watched it?
Despite having the most-watched premiere in Comedy Central history, and higher average ratings than other shows on that network initially, the show was canceled.
Why was it canceled?
amid poor reviews, dwindling ratings and higher production costs than other Comedy Central shows.
What did he do afterward?
Dunham appeared in a guest role with Bubba J on NBC's sictom 30 Rock.
Did he do anything after that ?
In November 2009 Dunham also appeared with Walter in "Hart to Hart", an episode of the Disney Channel series Sonny With a Chance.

Question: Did he ever go back to Comedy Central?
Self-contained rewrite: Did Jeff Dunham ever go back to Comedy Central?