I think two Modes of sound are good..
A somewhat "laid" back and your 5.1 Surround..
I have a 31-inch GE Stereo TV that most times uses the Stereo L&R sound..
My 2-PC's also have two Modes..My DELL DE051(1100-series Dimension)runs on L&R Harmon Kardon..
While my Intel Build(D915GAGL)uses a CREATIVE Audigy 2ZS SoundCard/playback is thru a JVC RX7010v Dolby Digital Amp. useing KLH Satellites(5.1)RCA 60-watt Sub-Woofer..the TV will run the JVC w/DVD Player..
I have a Satellite Radio(XM)that I patch thru a VCR into the JVC-amp..
I prefer 5.1 over Stereo L&R..there is just something "lively" in the SPKRS..
I have heard the BOSE-systems and they are very CLEAR in their Output..and Compact also..its a good deal.
I bought my Sony 55" SXRD several months ago and have been totally pleased with the picture. But as with all TVs, the speakers are adequate at best. Of course I can use my 5.1 sound system any time, but to just watch regular TV as in non-HD programming is a waste of electricity to run the sound system. So get ready Bose haters, I just bought this http://www.bose.com/controller?event=VIEW_PRODUCT_PAGE_EVENT&product=companion3_computer_index&ck=0
Incredible sound. Even though it's designed for a PC, it makes regular TV watching a real experience. BTW, I found it at Amazon for fifty bucks less. And connecting my iPod to it (at the round controller), well, you really have to hear it.