You mean Headphones.
Does your TV have a USB socket? If it does you could go for Wireless or Bluetooth but, they're expensive
Good headphones (will very likely have a 2 metre cable, so you may need to buy an extension) can be had from £20 to £300. I would recommend that you visit any local shop that sells PCs, TVs and Stereos and try a few.
2 things to remember: Plugging headphones in usually cuts out the TV's speakers, and, if like me, your hearing is not as acute at it used to be, forget "up-Market" jobs, you won't be able to discern the difference unless you are regularly listening to Stéphane Grappelli.
Very important ~ Go for comfort