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!"
The owner of the Indy 500 track divided the sport and split the formerly large fanbase years ago.
The various other stakeholders have subsequently killed it by making numerous idiotic business decisions.
Their TV ratings are almost non-existent.
Broadcasting a bad/broken product in HD isn't going to help.
Time to blow the whole thing up and start over.