So I'm flying in business JFK-LAX a little over a week ago and watching an episode of 30 Rock on the personal entertainment player. At the first commercial break, up pops graphics and videos identifying the program as 'NBC on United', complete with the United Airlines logo. i nearly spit out my warm nuts!

The same United branding and various United logos appeared throughout the episode.
A friend of mine wrote about this on his blog and posted a pic I sent. If you want to see it for yourself -
http://www.brendondavid.com/2009/11/...rand-stumbles/
BTW...I think it was like a copy used on overhead screens on United. Like on American, it had NBC stars in 'NBC on United' promos/intros...not normally seen on the personal devices. I watched a couple other shows and part of a movie. No UA branding anywhere else.
I showed it to the flight attendant, and when I handed it back to her later she said she couldn't wait to show it to the crew...