I saw the Spider-Man 2 DS commercial at least four times during Saturday morning on FoxTV. But other than that I saw a few of the more generic DS commercials on MTV2 a few times. The only time I'm watching TV is when I have my DS booted up for some Mario 64 mini-games.
I like them. Better than the first ones with "Go ahead, touch the bottom rectangle" ones. I like the ones with the guy writing on things and having it write back.
I've seen the spider man 2 ad for DS. Where a kid jumps onto a movie screen in a theatre, in order to touch spider man. But thats it. I don't watch much tv.