Ha. I watched it on the BBC - at least until I fell asleep (not based on the game, but my timezone). We get it ad-free. NBC feed, but cutting away at every commercial break to the BBC's UK-based (this year) studio team to discuss the plays we've just seen, with Jason Bell and Osi Umenyiora, and for this game Efe Obada because he's British. I *think* there's a world-feed that means that they've got a couple of additional shots delivered during the breaks so that we're not just replaying the replays already seen.
Sky, who are the main NFL partner in the UK, also do their own UK-based studio show, although with some talent in LA. But they have some (UK) advertising, and I kind of like the J-Bell/Osi show. So I stuck with the Beeb. Sky also promised the four hour NBC pre-game, but when I tuned in, they were instead showing the NFL Network's pre-game coverage. That seemed a strange choice and I wonder if it was out of their hands. (Sky has a 24/7 Sky Sports NFL channel that does carry loads of NFL Network programming to fill out the schedule).