We got a TV for the Olympics at my work. We have a satellite on the roof but building management said we had to take responsibility for all telco equipment if we wanted to plug a wire in, so legal said no dice.
Some guy brought in his HD antenna from home, which worked amazing. We are going to take $20 out of the social commity fund to get an antenna for World Cup.
Pro: cheap, great signal, can watch CBC at work
Con: Need line of sight with signal (we had it next to a window on a 27th floor, not sure if it would work in a room)
This one is $10 but I think most run around $20.
http://www.bestbuy.com/site/rca-indo...ears&cp=1&lp=2