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!"
As to someone saying this is not going to be an improvement over OTA HD - I've done OTA HD, it's not reliable. It all depends on where you are located, some channels might come in ok, but others don't. Even on channels that do come in, there is always some skipping every once in a while. Also there are way more HD channels on cable than OTA.
As for someone commenting about performance problems when watching a HD movie and streaming/recording HD cable at the same time being Windows' fault, come on. Does that really make any sense to you? Also, if you don't like the two external boxes, get the internal version. But given that the interface for the OCUR is USB either way, I'd personally prefer to have the external version rather than use up expansion slots unnecessarily.