Leno is one of a handful of high-profile guest stars appearing in the first season of Shifting Gears, joining Jenna Elfman, ...

Tim Allen is shifting gears by bringing in another stand-up comedian to help generate some laughs on his ABC sitcom. Jay Leno ...

"Is this the 23rd hour of The Today Show?,” Letterman asked as he wandered onto the stage to greet Jimmy Fallon.