Jay Leno’s Tonight Show adults 18-49 ratings stayed below those of  Conan O’Brien’s Tonight Show on a calendar week basis (2010 vs. 2009), but were above Conan on TBS show for the week.

Leno’s Tonight Show for the week of December 6-9, 2010 averaged a 1.0 rating with adults 18-49, while Conan’s Tonight Show averaged a 1.1 adults 18-49 rating for the comparable calendar week last year (December 7-10, 2009).

Conan’s new TBS show averaged a 0.8 adults 18-49 rating for the week of December 6-9, 2010, the same as the previous week.

Letterman’s Late Show scored a 0.8 adults 18-49 rating for the week.

For those constantly asking when these Jay vs. last year’s Conan posts will end, just 6 weeks to go. Plan your post-February whining now! Although after that date I plan to start a new chart with current year late night ratings only to gauge reader interest.

The chart shows the late night adults 18-49 weekly average ratings for 2009 and 2010.

New and improved with Conan TBS ratings!

Note: The week ending 7/2/2010, the Tonight Show was in repeats, and was delayed by Wimbledon coverage. The week of 7/9/2010 the Late Show was in repeats, and both shows Monday airings were excluded because of the holiday. For the weeks ending 7/16-8/6, Late Show was a repeat only on Friday.  The week ending 8/13, Late Show was encores all week.  Both Late Show and Tonight Show were repeats the week ending 8/20. For the week of 9/3/10, Late Show ratings were based on four days only. Note for the week of 9/10/10 NBC’s Thursday telecasts were delayed by a primetime NFL overrun.  Friday’s “Late Show” was an encore, Monday results are excluded from these averages due to the Labor Day holiday. Late Show was in repeats the week of 9/17/10. Note that due to the mid-term elections, Late Show Tuesday ratings were excluded from the averages and the Tonight Show was pre-empted Tuesday the week of Nov 1-5.

Last season timing note: The Late Show staff member extortion story broke on October 1, 2009.

Posted by:TV By The Numbers

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