On TV, magazines, websites, and right here at VGChartz.

I've only seen Mario Kart 8 adds on VGC but that could mostly be because I don't watch much TV. However, the TV I do watch would be good places to advertise, yet they don't. Not all advertising should be on children's TV.

I have seen two different advertisements for Yoshi's New Island and Tomodachi Life at the movie theatre, though. I saw the Yoshi's New Island one before Frozen and then the Tomodachi Life one before Maleficent.

the only TV Show i am watching at the moment is 24 Live Another Day and i usually don't watch the episodes until like an hour or 2 after it airs and i just end fast forwarding through the commercials so i haven't seen any Wii U commercials on TV yet

I've seen them on many channels, Teletoon, YTV, Space, and the "W channel"... not entirely sure what that one is... lol and then a few others

I thought I saw a Vita commercial once. Turns out I was just high.