In Sep '2008, Google and NBC teamed up to enable Google to sell TV ads to be aired on NBCU cable channels. adWeek reports the deal has be "aborted."
"NBC Universal and Google have discontinued their ad sales partnership begun in 2008, the companies have confirmed. The split deprives Google's TV ad sales unit of one of its major alliances, although it still has deals in place with Dish TV, DirecTV and a handful of smaller networks like Ovation and the Tennis Channel."
Reportedly NBC wasn't benefiting at all from it. The report said, there was "little value derived from having an Internet company sell its ads." And advertisers told adWeek, "There was little if any prime-time inventory available for Syfy," so there was no real benefit to advertisers?