Vancouver, B.C.
See Ian's description.
Add to it that it was Minoru Arakawa's North American home after he got married to Yamauchi's daughter and moved away from Japan, before he moved to New York (and later back towards Seattle) to build Nintendo of America. Supposedly Arakawa started up a world-class sushi resturaunt somewhere in Vancouver when he first moved here, and still owns it. I don't know exactly which one, and don't eat sushi anyways.
Nintendo of Canada is located just outside of Vancouver, in Richmond, one of our suburbs. The world's first ever videogame development school "Digipen" was setup by NoC in Vancouver.
EA Canada has some sort of massive HQ in Burnaby, another Vancouver suburb. It's supposed to be fricken HUGE (I've only seen it from one side, through some trees, and it did look pretty big) and state-of-the-art, and does a good chunk of EA's business (like, all of their motion-capture, and voice recording, for starters), and EA still apparently wants to double it's size. All of Final Fantasy's translation work when Square was teamed up with EA was apparently done inside the Burnaby HQ.
The "Electric Playground" videogaming TV show is based out of here. I was lucky enough to hang out in their office once, a long time ago. Never met Tommy or Victor though.
"Ocean Studios", a company that does a LOT of voice recording for English-dubbed anime shows like Dragonball Z and Gundam is located right here.
"Mainframe Entertainment", the computer-animation guys behind shows like Reboot Transformers (Beast Wars and Beast Machines), and the latest cel-shaded Spiderman series is here.
Other popular Vancouver-based TV shows would include Highlander: The Series, The X-Files, Stargate SG1, and Smallville. My older brother once goofed around in Duncan MacLeod's dojo (he crossed one of those "do not cross" ropes), my sister was an extra on an episode of the X-Files (and mistaken for Gillian Anderson's stand-in), I've got Michael Shanks's autograph, and I've bumped into Kristen Kreuk once (but I had nothing for her to autograph).

And I am also pained by the Canucks loss.