It's redundant but it's something I'm looking to see if it actually exists.
Like I know this exists but I have never heard of the brand before and I'm not up for spending that much money on something that well isn't exactly what I'm looking for.
I forget where I heard it but someone once told me about a solution that worked for them (may have been my teacher) that would work if the TV has an audio output. Basically how it works is you plug in an audio splitter like this and then you plug in speakers through one of them so others can hear and plug in wireless earbuds/headphones (like this) so that he can hear the TV. This may not be ideal if there are others who he might want to hear but if he lives alone or doesn't need exceptional hearing while watching TV I think it would work quite well. Not to mention it would be quite a bit cheaper than something like TV Dex (though I've heard those work pretty well).