FS is Future Shop. A Canadian based electronics retailer.
The company tried to move into the northwest US about 2 or 3 years ago and got their asses whupped. From what I understand Best Buy bought them out, but will continue to operate them under the Future Shop name.
They are opening a lot of new stores so it looks like they have more or less recovered from the US expansion failure. They have very little competition here, (Visions, A&B sound, Compusmart) so they don't run the specials like you see in the US.
Hope this clears things up...