I think things went off topic a bit...
Wondering about the 2.1/3.1 and the decoding stuff. Remote stuff though, bit important for me. I have a Sony Bravia, and I know they have some sorta sync option if the soundbar has HDMI. Sadly, looks more like the cheaper ones don't.
I was looking at a used
Sony HT-CT260H, which has no HDMI, but, being a Sony and my TV/Remote being Sony, I'm assuming the remote can be programmed for it. Barely used, about $125CAD... thinking be better than built in speakers.
But again, Sony doesn't always have a good review in their lower-mid range. Vizio always seems to have decent reviews, may look into those. Kinda like the VIZIO-S4251w-B4, if I had a bit more
space for rears, otherwise they'd be so close that they may as well be headphones.