Thanks, that’s useful information. On my end I’ve done a lot of research over the last few days and discovered that chasing pixel count is not the best approach since my eye would not be able to discern them unless the screen was very large and/or very close:
For a (maximum - wall mounted) 4ft viewing distance I’d need a 55.2" screen, like yours, but given the 46" made me feel queezy that’s not really an option. A better bet is to buy something like a 27" 1440 line monitor and mount it closer.
Instead I plan to focus on buying a monitor with the best colour reproduction possible: LED IPS panel + high contrast ratio with Nvidia G-Sync adaptive refresh. My 3 existing Dell 2412M 24" monitors are very good but the blacks are not very deep, but I wasn’t focussing on that at the time of purchase. There’s a nice Acer Predator model on the market that fits the bill and goes up to 165Hz refresh: