Jay Leno Jay Leno

In his second week back behind the desk of The Tonight Show, Jay Leno continues to be No. 1 in late night. But the success isn't as sweet as it was before CoCo-gate.

Between March 8 and 12, Leno averaged 4.4 million viewers, trumping David Letterman's The Late Show, which averaged 3.8 million viewers. Leno also won out among the adults-18-to-49 demographic.

The downside: Leno's averages are down 13 percent in the demo and 3 percent in total viewers from the same week a year ago. Worse news for NBC: Leno's rating in the demo is barely beating Conan O'Brien's average, and the median age for Leno's viewership (56) is higher than both Letterman (54) and O'Brien (46).

The later late-night war is much closer: Late Night with Jimmy Fallon averaged 1.6 million viewers last week to The Late Late Show with Craig Ferguson's 1.7 million viewers. Both shows were deadlocked in the demo.

What do you think of Jay's slipping numbers?