Here's what Sony's top of the line 75" tv has for audio, pretty impressive:
Sound:
- built-in 2.2-channel sound system (85 watts total)
- Acoustic Multi-Audio technology uses four frame tweeters to position sound where it appears onscreen, increasing immersion
- Acoustic Center Sync synchronizes TV speakers with compatible Sony sound bars for fuller, more immersive sound
- front-firing subwoofers add surprisingly powerful bass
- sound is projected to the side and vertically to provide 3D surround sound without additional equipment
- audio signal is "upscaled" to surround sound, so everything you watch gains the benefit of 3D audio