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!"
People ultimately like to buy their movies and although the surveys show many people don't know the difference between SD and HD you should never underestimate people's desire to keep up with the Joneses. I have Blu-ray and HD-dvd because I work with film and I can very easily tell the difference between HD and SD, bus I know many people who bought a $4000 HD TV and Blu-ray and hooked it up using a composite cable and marveled at the quality.
Either way I'm happy as long as I continue to be able to buy physical media with extra features that I can watch at my convenience at the quality level I prefer. That's not to say I don't watch on demand films, but I certainly wouldn't watch dark night that way, but a lesser film I couldn't justify parting with $25 for, absolutely.