Few things I considered when buying one a couple of years back -
Curved or flat? Personally I prefer flat, but check them out in the shop and think how it would work from various viewing angles in your house.
Does it have a receiver built-in for Saorview?
Does it have a satellite receiver built-in? Handy if you have a dish and want to tune in the free channels.
Ensure it has enough HDMI ports. 3-4
SCART is analogue and quite a few TVs are digital only these days. However for €20 you can buy a SCART-to-HDMI adapter on Amazon which would be worth a try.
You may want a new Chromecast as the built-in equivalent are often only OK.
As others have said, must be 4K/UHD.
If you choose any of the decent brands the screen quality will be fairly similar, by lying more you get a thinner bezel, better CPU for the various apps, more ports, more receivers etc. But there are diminishing returns here; you probably don’t want to surf the web on it, 3D is fairly naff at home etc., so as others have said I’d stay well below €1000.
Something like this would probably float my boat if I was looking today -
https://www.currys.ie/ieen/tv-and-h...ra-hd-hdr-led-tv-with-bixby-10191733-pdt.html