Read the reviews on sound bars and listen for yourself. They are a big improvement on TV sound but many sound thin, shrill or tinny. Don't go cheap. You will have to decide if you want a subwoofer with it or not. Listen carefully to dialog when you audition them.

This Philips has excellent reviews but may be hard to find.

Philips HTL5120 review - Soundbar



Some of the Sony's are decent and the Sonos is the best I have heard but expensive

I listened to several of them about 1 year ago and ended up buying a pair definitive technology home theater bookshelf speakers to use with a cheap pioneer receiver. The sound is much better than any sound bar.