Let the hive mind of Engadget get that for you.
"I am looking for a device that will stream sound from one source to several recipients. For example, I want to stream sound from my TV or stereo to my phone or MP3 player that has radio and Bluetooth capabilities. I have looked into radio transmitters and they seem like a decent choice, but I can't find one that uses external power (USB or from the plug) and I would want one with a transmit range of around 50 meters. Thanks!"
Too bad these guys are notorious for lousy picture quality and reception. Belo bought all their HD gear really really early and got 1080I stuff, but ABC broadcasts in 720P so they mess with the nationwide feed when they transmit it, and the results are about as great as TNT HD.