Letterman gains over Leno; "Nightline" on top overall
- by Wayne Friedman , December 2, 2011
David Letterman has been inching closer to Jay Leno for the better part of a year among key 18-49 viewers.
Now in the key November sweep period CBS' "Late Show with David Letterman" has topped NBC's "The Tonight Show with Jay Leno" -- 1.19 million (0.9 rating/4 share) to 1.08 …
