I used to do this and got the converter from radio shack. I had a converter that would join the red and white audio channels and then I'd plug the headphone into the other side of it. Can I use this ...

I have an older Panasonic TC P50ST30 (release review/specs here) that was generously given to be by another Arsian that does have ARC support (I think). The TV sitting in front of an old but nicer ...