Thursday, April 3
(New York, NY) -- David Letterman is calling it quits - in 2015. "Variety" says the late night host will discuss his plans to retire on tonight's edition of "The Late Show With David Letterman" on CBS. Next year will mark Letterman's 22nd year of hosting "The Late Show." His departure will follow the exit of longtime NBC late night rival Jay Leno, who bowed out of his "Tonight Show" hosting gig earlier this year, giving way to new host Jimmy Fallon.