Conversation so far:
What happened in Ryan Dunn's career?
Ryan Dunn took part in the characteristic stunts that made Jackass famous, and featured in three released films, Jackass: The Movie, Jackass Number Two and Jackass 3D.
Was Ryan Dunn's Jackass: The Movie film a success?
Ryan Dunn's Jackass: The Movie grossed over $79 million worldwide and received very mixed reviews from critics.
Did Ryan Dunn go on a tour?
Ryan Dunn went on a tour with Don Vito called The Dunn and Vito Rock Tour for which the DVD was released on March 20, 2007.
When did Ryan Dunn go on a tour?
Why did Ryan Dunn go on a tour?
When was Ryan Dunn's The Jackass 3D released?
Paramount Pictures released Ryan Dunn's Jackass 3D on October 15, 2010.
Did Ryan Dunn make any television series?
Ryan Dunn co-hosted G4's Proving Ground along with Jessica Chobot.

Question: When did it start?
Self-contained rewrite: When did Ryan Dunn's show, G4's Proving Ground start?