Ferguson Letterman

David Letterman is set to become the longest-running late-night host in TV history.

Letterman and Craig Ferguson have renewed their deals with CBS. Letterman’s Late Show and Ferguson’s Late Late Show will remain on the air through 2014.

Letterman launched his late night career with Late Night on NBC in 1982. With this deal, he’ll surpass Johnny Carson’s 30-year record of consecutively hosting a late night talk show.

“David Letterman is a late night legend with an iconic show and Craig Ferguson continues to evolve the genre in exciting and innovative ways,” said CBS entertainment president Nina Tassler. “These new agreements deliver ongoing high-quality entertainment for our audience and continued strength and stability for CBS in late night.”

Season to date, Letterman is averaging 3.3 million viewers and a 0.9 rating among adults 18-49, compared to rival Jay Leno’s 3.7 million viewers and 0.9 rating. Ferguson has averaged 1.5 million viewers and a 0.5 rating.

As part of the deal, Ferguson’s program, which debuted in 2005, will move to a larger stage at CBS Television City in Los Angeles.