audio solution needed

I have a Sharp brand TV that sounds reasonably well for a flat panel TV. I have Samsung that sounds terrible. But the Samsung is in the "movie" room. So I have a bar and sub to it. The Sharp is the main TV we watch for TV shows or sports. Its not bad, but I wouldnt want to watch music videos on it.

All my other Tvs are smaller 36" or so in bedrooms, and they sound terrible as well.