Conversation so far:
When did late night with david letterman begin?
It premiered on NBC on February 1, 1982, and concluded on June 25, 1993.
Did David Letterman have any other host with him at the time of starting Late Night with David Letterman?
All throughout 1981, in addition to guest-hosting the Tonight Show as outlined in the terms of his contract, Letterman also frequently appeared as guest on the highly-rated program
How many years did Late Night with David Letterman run?
Late Night with David Letterman ran for eleven years.
What networks was The Late Night show with David Letterman on?
Late Night originated from NBC Studio 6A at the RCA Building at 30 Rockefeller Plaza in New York City.
Were there any memorable moments on the Late Night Show with David Letterman?
David Letterman's reputation as an acerbic interviewer was borne out in verbal sparring matches with Cher, Shirley MacLaine, Charles Grodin, and Madonna.

Question: What time did the show come on?
Self-contained rewrite: What time did the Late Night Show with David Letterman come on?