The first night of Late Night with Jimmy Fallon delivered a 2.3 rating/8 share in metered market households, easily winning its timeslot for the night.[…]
NBC also says that the premiere was up 35% from a typical installment of Late Night this season, and retained 55% of its Tonight Show with Jay Leno lead-in, compared to the 46% season average.[…]
Fallon also out-rated Jimmy Kimmel’s show in the half hour they compete head to head 2.7/9 to 2.3/8.
via Broadcasting & Cable.