This seems like something that could be done easily in the analog domain. Most TVs have a 3.5mm or RCA line-out, line-in to bluetooth adapters are cheap, and an

This seems like something that could be done easily in the analog domain. Most TVs have a 3.5mm or RCA line-out, line-in to bluetooth adapters are cheap, and analog signals can be fanned out with a passive splitter. In practice, the conversion to analog and back shouldn't have any noticable effect. The bluetooth adapter is going to compress the stream anyway. Depending on what you're hoping for, though, bluetooth might have too much latency. Media players on mobile devices and PCs are aware of the fact that they're outputting to a bluetooth audio device and compensate for it by delaying the video as well.