Among the many mysteries of David Letterman: how much time he's planning to take off this summer. The CBS "Late Show" host turned over the reins to guest host Tom Arnold on Friday. Read the whole ...

Letterman gave late night the top 10 list, stupid pet tricks and more. — -- Tonight, after 33 years in late night television, David Letterman will preside over his final episode of the "Late Show ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. One of the most iconic remote segments from David Letterman's days on Late Show saw him employed ...