Wireless A/V transmitters are not new but have only recently become affordable with the mass production of wireless networking technologies.  The foremost player in this market that’s been receiving great reviews from users is by Belkin Pure AV Remote AV55000.  Belkin is a veteran of the connectivity and power protection market, their power strips, surge suppressors are well known throughout the industry.  The Belkin Pure AV Remote TV is a 5GHz audio-video transmitter that easily connects to the A/V outputs of one device, this can be a TV, DVD player or even a PVR.  The Belkin AV Remote then sends your transmission to the receiver, another box that looks identical to the first except its connectors are outputs to be connected to the receiving TV.  The Belkin Pure AV powers up two rooms with your favorite television programming.  The transmitter is documented to have a range of around 350 feet, enough to make most runs inside your house.  At 5GHz it’s unlikely to receive interference and is well received as the AV transmitter that works consistently.  But at a price of about $500 it’s a bit expensive considering there are now lower cost alternatives. 

The RF Link AVS-5811 5.8 GHz Wireless device is another A/V wireless transmitter that does the exact same job as Belkin.  However this one not only transmits at a 5.8GHz but is also considerably less expensive.  You can find the RF Link AVS-5811 for $140 or less.  The transmitter/receiver boxes are even smaller than the Belkin’s already compact units and operating at a slightly higher frequency should make them just as reliable for uninterrupted transmission of audio/video programming.

While A/V transmitters are a handy tool for providing signal to a roaming set or into a room you can’t easily wire.  The drawbacks are apparent; it’s not a tuner, so you’re only transmitting one device that is controlled by the source at the transmitter.  The video being transmitted is S-Video at best, no HD.  Audio is only two-channel stereo so you’re not going to power up a multi-channel amp for a second complete Home Theater system.