Jimmy Kimmel had a very good night Tuesday.
In his 11:35 PM debut, the ABC late night host beat new rivals Jay Leno and David Letterman in both households and the Adult 18-49 demo.
In 25 markets with local people meters,

18-49
Jimmy Kimmel Live got a 1.0/5 rating
The Tonight Show’s 0.8/4
The Late Show’s 0.6/3.

Among Nielsen’s 56 metered markets, with Memphis and Salt Lake City excluded,
Kimmel’s Show 2.8/8
The Late Show With David Letterman got 2.7/7
The Tonight Show With Jay Leno got 2.4/6


It's over Jimmy.