By Lynette Rice
Updated January 10, 2013 at 07:50 PM EST

Jay Leno and David Letterman rallied on Wednesday night after Jimmy Kimmel joined the fray: The NBC and CBS late night stars saw gains in total viewers and certain demos versus Tuesday night, while Kimmel lost a few eyeballs but gained more young adults, according to results from Nielsen.

Overall, Leno kept his lead in the timeslot on Wednesday in viewers (3.55 million) and adults 25-54 (1.2 rating). Kimmel was second in 25-54 (1.1) while Letterman was third (1.0).

As for the 18-49 race, Leno and Kimmel tied with a .9 rating, which was flat for NBC but a .2 improvement for ABC versus Tuesday. Letterman earned a .8.

Among total viewers, Letterman was second (3.03 million) and Kimmel came in third (2.85 million).