Debut: November 9th, 2009
Lifespan: 22 months
Just as Jay Leno stole Conan O'Brien's show, Conan O'Brien stole George Lopez's timeslot. Lopez Tonight was handling itself pretty well in TBS' 11 p.m. slot. However, the arrival of Conan knocked Lopez Tonight into the midnight hour, which led to a viewership decline. Within a year of the move, Lopez Tonight was canceled. Don't blame Conan though; Lopez Tonight just wasn't very funny. Its best moment came when comedy genius Larry David stopped by to take a DNA ancestry test. "I never should've been on the show in the first place," David said.