You should be able to get a decent surround sound system/sound bar that connects directly to your TV without the need to get a bluray player. It will connect either using bluetooth or HDMI to the TV.
A quick look at PC World or Richersounds web sites will bring up a few.
The Sony HT ZF9 with Dolby Atmos about £650 is worth consideration.
There are other systems available with prices from £450 to £1400