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!"
lol, but aside frm the ps3 the major reason why sony succeeded was due to their large influence in the film industry.
when betamax was released it didnt catch on because studios were reluctant to invest in new technology as it would render their current equiptment useless; however nowadays sony could easily release blu ray as sony pictures us involved in a great number of productions such as spiderman