TV speakers for the deaf?

my father in law had this issue
his wife, did not
so for them two to watch TV together was not fun

we solved it by buying him a set of wireless headphones
this allowed him to blast the TV as loud as he wanted, while she can listen at a more moderate level


at my house, i had the issue of kids being in between me and the TV, making their usual racket and making it hard to hear the TV over them
i solved that by installing the center speaker of the surround sound (the one that most dialogue runs through) behind the couch, just above my head
of course, that doesnt help you if you dont have surround sound yet