Visio 2017 M series 55" in livingroom
Panasonic plasma 42" in bedroom. Still best TV for dimly lit shows like chilling adventures of sabrina.
Samsung 2012 7000 series 46" in guest room
Sony kdl-55w900a 55" in game room
Visio D series 42" in gym
The Sony is what I'll replace next. Still produces a fairly good picture today and PC games down sampled from 1440p to 4K look good. Probably in 2020 or 2021. I also use it as a work from home monitor so whatever I replace it with will be top quality for all uses.
While the tv is great and I got it for a good price , I would’ve still kept my old samsung 1080p 42” if my mom did not ask for it when I moved from my old place. I could've lived on without the bells & whistles, but maybe I change my mind up when I hook up a 4k supported console to it in the future.
Have to same tv as you OP just 49 inches. Probably won't upgrade for awhile unless my tv breaks or there's one helluva sale; ain't spending another $1000+ for some minor jumps in performance coming into next gen. I'm sure the PS5/nextbox/next Nintendo console will still look great on my tv.
Had a Sony 55XD93 since Dec 2016. Just set up an LG 65c9. Its gorgeous, but feels a bit big so far (more like a cinema where you're looking around the picture rather than the entire picture being visible in your field of view). OK for cinematic stuff but not sure yet for day to day watching. Also that size makes regular TV - even HD which is still compressed and I think only 1080i - not look great.
But OLED is amazing and I got fed up with the blooming from the limited local dimming of the Sony, and it didn't support Dolby Vision or HLG HDR (used by BBC Iplayer) - bit of a black sheep of the Sony family - was a high end set in 2016 but for weird chipset choices it got skipped over for several updates that even the lower end 2016 models got.
Your TV still seems to be a good one so no real need to upgrade yet.If you're a console user I'd wait for HDMI 2.1 to settle down and be adopted across more TVs, and for more source components that use HDMI 2.1 features - let others be the beta testers. Also next gen consoles will hopefully adopt features like VRR but that means you can probably safely wait until this time next year for the 2020 spring models to be selling cheaply, or even wait for the 2021 models before you'll see significant benefit upgrading.
If you connect your PC to the TV, then a HDMI 2.1 with VRR like the LG C9/E9 might be tempting now for 120Hz 1440p gaming on a big screen
Your TV will be fine for next gen.
It won't be able to do 4k 120fps, but not everyone can tell the difference between 60fps and 120fps, also only current gen and older games will do 120fps with maybe some indies doing it to, but I don't think it will be a big deal for most people.
I to have a mid range 2017 4k Panasonic, It was actually a stop gap TV, because my 2009 1080p Samsung broke, and I was going to get an OLED a few yrs later, but after using the Panasonic for a few yrs now I'm pretty happy with it, sure it does not have HDR and 4k 120fps ability but those things are not that important to me. They won't effect my enjoyment of the game.
My gaming TV is just some old 40" Samsung, probably over 10 years old now. The TV tuner doesn't even accept HD channels so it's a bit long in the tooth but still does the job. I'll upgrade to a 55" when the PS5/Xbox Next come out.
65" X900F, which I've been very pleased with, it's a great set for a brighter room.
I don't own it, but I'm lucky to spend most of my work week in front of a BVM-X300, which is incredible, but we have some B8, C8, & C9 sets which I sometimes use and are lovely. The live zoom function on those is pretty cool.
I have a 55'' LG C7 4K OLED in the main room and a Philips 55'' 4K LED 7304 in the back room (my lair). The OLED is clearly better in all respects but the Phillips was cheap, gives a reasonable picture, especially with a good source, and seems to have low latency - and has ambilight.
A Sharp Aquos LC-50LE650E from 2014. I hate it, it has a terrible picture, especially when hooked up to the media pc, and it has had a problem right from the start where it can't update it's firmware. Going to be replacing it next month finally with a 4K television, probably another 50".
I'd like an Ambilight but I doubt the local retailers have any.
Basement: 50" Panasonic plasma. Only 720p, but it still looks great to me. Bought it in 2008, and I will be sad once it eventually craps out.
Living room: 49" LG 4k something or other. Good tv, but it has a weird issue where on Prime video, the audio and video won't sync up, and you have to use an optical cable to get it to sync. You'd think they'd have figured this shit out by now, especially since the 11 year old Panasonic has no such issue.
42" FullHD Panasonic plasma from 2009. It survived one power supply board failure, still kicking. I kinda wish I had a bigger TV, but I'm not giving up a plasma while it still works. I'll be sad to see it go one day.