Trust me, I've tried many weird wireless solutions to distribute video to other TVs (not computers). These include 900 MHz RF (to get away from 2.5 GHz) transceivers from Leapfrog, UHF/VHF transceivers, etc. None of them work, I've got a garage full of crap to prove it.
Your best bet is to run a wire, whether it's RG6/coax/Cat5 with a balun/etc. Barring that, the Slingcatcher is your best option if you want to display stuff onto an actual TV. The only caveat is that it was announced last year and has yet to actually ship. Not sure what the delay is but if it ships, that's what you want.
