PBS | Taped at The John F. Kennedy Center for the Performing Arts on November 10, 2008, the 90-minute 11th Annual Mark Twain Prize honoring George Carlin featured tributes and comic testimonials from a star-studded cast including Richard Belzer, Lewis Black, Margaret Cho, Ben E. King, Denis Leary, Bill Maher, Joan Rivers, Garry Shandling, Jon Stewart, and Lily Tomlin.