I have that tv in a 56". It used to reside in the living room, but now it resides in my bedroom. It is way too big for a bedroom tv.
My audio is a set of Altec Lansing surround sound 5.1 speakers that were given to me back in 2002 when they were a sponsor of our marketing tour. Since these speakers, and the Altec Lansing speakers attached to my computer sound fantastic, I haven't really felt the need to invest good money into an actual stereo system or "home theater" system.
When I did custom home installs back in my teen years, our company only used McIntosh, Luxman and Onkyo equipment. Period. We actually manufactured some speakers in-house that were tested by McIntosh and all they said was "wow, very clean and crisp." These speakers sold for $3500/pr back in '87. It was a custom case from a cabinet maker, a 36" ribbon driver from Gold Ribbon Concepts, and 2- 10" sub drivers (can't remember the manufacturer of those). People would come into our sound room to listen to those speakers and would try to say "these aren't really that loud" to us, while at the same time realizing that they weren't being heard because it was actually very loud. The problem is that most people associate distortion/noise with loudness.
So that little story was just to show that I have caviar taste, but a bologna budget. When I actually get my own home (someday) and worry about equipment, then I'll spend the money and get the best there is: McIntosh.