STAGE TUBE: Letterman Celebrates 20 Years on the Late Show

On Thursday night, David Letterman celebrated his 20th year on CBS Bill Murray, who was Letterman's first guest on the Late Show on August 30, 1993.

When Murray, now 62 years old, came onto the stage, Letter man said, "Wow...Delightful. I didn't know you had a dog." Murray responded, "I had to get something that went with this outfit," then laterjackhammered the floor and found a time capsule filled with things from 1993 (included was a newspaper with a headline about Jay Leno, and a hairpiece Murray said Letterman had worn on his first show.)

Check out the video below!

Letterman recently surpassed friend and mentor Johnny Carson for having the longest late-night hosting career in the United States of America.

Letterman is also a television and film producer. His company Worldwide Pants produces his show as well as its network follow-upThe Late Late Show with Craig Ferguson. Worldwide Pants has also produced several prime-time comedies, the most successful of which was Everybody Loves Raymond, currently in syndication.

In 1996, David Letterman was ranked #45 on TV Guide's 50 Greatest TV Stars of All Time.

STAGE TUBE: Letterman Celebrates 20 Years on the Late Show