I would like to simply state a resounding "No."
However, I cannot lie: Advertisements on TV are always a contributing indirect factor.
For example, it's not like I'm gonna go BUY the game because of an ad, but in the case of Mirror's Edge, where the advertisement showed ACTUAL GAMEPLAY, it interested me enough to look up the game, look up things about it, etc, do research about it because I found it interesting.
Did the commercial make me buy it? No. But it got me thinking about it to the point of interest and I ended up really liking what I saw in previews, purchased the game and truly enjoyed it.
Same with the ads I saw for Wolfenstein. They weren't really ads, per se, but rather articles in a magazine I frequently read, which, you know...made me interested.