I'm thinking as you are: Go test how the display "models" sound when shutting off. I didn't buy the TV; I was way too ill to go anywhere (when my ol' Sony "died"). A friend brought the TV and a media stand and helped set up the TV; the stand is still in limbo in my garage.
I can actually live without TV (except the "noise" it creates does overpower sounds of the house settling, etc.

), which is why I wasn't about to buy a new one. (I use it for a nightlight and sound muted.)
No matter, though: I still wanting it to work as ideally as allegedly designed to function. If it can't, it goes back.
I'm like you: I don't need a bunch of confusing remotes and stuff to make me happy. The best TV I have? A tiny Magnavox with rabbit ears and it's not connected to the dish or to cable; it's ancient but works like a charm. It gets three stations, and... good enough for me. Prob. is: the stuff that will all change by 2009 or something like that... and having guests who just gotta have TV. (Gawd forbid they visit and have to actually converse - or, as some say these days, conversate.)
I think I'm mourning: the loss of when we could just buy a set and plug-n-play. It's like now, everything has to be so darn'd complicated and that's progress? Hmmm

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".... This world wasn't built for people in wheelchairs ...."
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