You guys can hear.
I have screwed up hearing and while I have surround sound I don't hear half of the frequencies. My son ever year or so adjusts the surround sound setting with the little thing that came with it. He asks me all sorts of questions of which way I want it and I tell him it all sounds the same.
Same with me. Twelve years on an International Harvester assembly line and forge shop (no one wore ear protection, safety glasses or hard hats those days) will do that to you.
I listen to tv through headphones. Otherwise I have to have the volume so high it disturbs others. Wife and I watch tv in separate rooms since we never watch the same programs.
I listen to music through Beats Pro headphones and they are great. I like to listen to music with "punch" (I can't hear the high frequencies naturally). The Beats Pros provide that punch.