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!"
I am in Aurora and do not have new HD channels, my TIVO HD thinks I do but no signal on new channels. My Comcast cable box doesn't have new channels either. So I Live Chat'd with Comcast... she told me that the new HD channels have been postponed with no new release date. Comcast Sucks!
Has been postponed to may 5 be patient