Some Canadians can get multi-room TV through their providers, but a truly wire-free option hasn't been on the table -- no doubt a disappointment for backyard viewing parties. Bell is filling that void today with what it says is the first carrier-supplied wireless TV package in Canada. Fibe TV subscribers can now pick up as many as five Wireless Receivers (really, Motorola VIP2502 boxes) to extend their HD viewing and DVR control to the