you simply just can't do that. logically, the blu tooth headset is for chatting only online, and if in case it's possible, you will not get good audio output from it. i personally use don't use headsets while playing because there's still a lot of gamers that use headsets with no noise...
it depends on your tv's connectivity and with the blu-ray player's output. if your tv has an HDMI input, then, you don't have a problem, if not, make sure that the blu-ray player you are going to buy has an optical and/or analog output ( RCA ). just switch the blu-ray player's resolution to auto.