My 15 year old Panasonic Viera 52 inch plasma is still working like new. Great picture quality with no burn in. Besides, it’s helping to heat the room I’m in on this cold rainy day.
In general I've found Panasonic the most reliable consumer electronics brand. Also the best color quality, too.
I'm in a weird situation as almost all my personal TVs are ones I got for free with bad mainboards, backlights, etc, that I fixed.
Currently in the house I have running:
55" Samsung in my bedroom, bad mainboard (1080p from approx 2011)
65" Samsung in my mother's bedroom, bad mainboard fixed with reflow (1080p, approx 2010, too)
50" LG in the living room, approx 2012
55" Vizio 4K Smart TV in sister's bedroom, bad backlight, approx 2017
I had a 32" "Upstar" TV in my bedroom prior, two of them, one died, one is still running. We have a 2012 or so 32" Vizio at my other sister's place, we also got that new. I killed a 19" generic TV by blowing a fuse running 12VAC instead of 12VDC by accident. We have some ancient 19" LCD still kicking around that doesn't even have HDMI that still runs. I also found and gave away a 2005 or 2006 Panasonic 24" LCD TV, and a 2007 Toshiba 32" LCD TV with a CableCard slot
I've fixed a TCL Roku 55" TV recently, looked like it blew a fuse but I replaced both the PSU and mainboard for about $50 total, and it's been running fine.
I think the only new TV I'd get under normal circumstances nowadays would be an LG OLED, since apparently I can get an unlimited supply of free broken TVs for every room in the house. I'm addicted to how nice OLED is vs LCD after getting an LG G8 smartphone with an OLED screen. Definitely a quality game changer. Out of all the TVs I own I like the LG's color most, too.