Conversation so far:
When did it debut?
O'Brien's Late Night debuted on September 13, 1993.
Are there any other interesting aspects about this article?
The premiere episode featured John Goodman (who received a "First Guest" medal for his appearance.
How did the public take to this show?
O'Brien's inexperience was apparent and the show was generally considered mediocre by critics in terms of the host's ability.
Did it have any notable actors?
Drew Barrymore, and Tony Randall.
Did these appearances increase viewers?
Stars like Tom Hanks agreed to appear on Late Night, which boosted audience awareness.
Wht was critics take on the show?
The Chicago Sun-Times' Lon Grankhe called O'Brien "nervous, unprepared and generally geeky.

Question: What were its ratings?
Self-contained rewrite: What were Late Night with Conan O'Brien ratings?