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!"
Surviror is shot on Digital BetaCam and has been from the beginning. It works, it's reliable and it's the old saying "if it ain't broke don't fix it".
Don't get me wrong, I would love to see Survivor in HD. Something to think about. RockStar: INXS (another Burrnet production) used Sony's XDCAM format. Keep in mind that the show was in LA, so if any technical problems arose it was a non issue. So what I'm saying is, if they are testing out these newer formats in controlled enviroments now, who's to say that maybe on a future season of Survivor they'll move to HD aquisition.
My .02