People that play competitive Smash Bros Melee will only play on CRTs.
https://www.reddit.com/r/gaming/comments/wr31qd/my_crt_vs_my...
"…scanlines were used to blend “pixels” together, plus “pixels” on a CRT tend to bleed color slightly and artists would also use that to their advantage."
I played some Mario Bros 3 and... I kept dying. Jumping too late led to running into holes and enemies. It was so bizarre, I couldn't believe how bad I'd gotten. Tried the next day, same deal.
Then I had a thought re delays. Pulled out my NES and hooked it up to the CRT and all that stopped
There was sufficient delay in the NES mini and modern TV it made a huge difference.
I'm sure I could retrain myself, but it was honestly stunned at how much of a difference it made
That said, if you ever get an urge to play Mario on modern hardware, try run ahead emulation. It’s quite magical.
Also, it's very very difficult to get the "look" right on an hdtv. The original graphics were intended to be displayed on a slightly "fuzzy" CRT, and if you care about the aesthetic, just transferring those same graphics to an hd-tv display often doesn't look right in a bunch of different ways. (Pixel aspect ratio, aliasing, frame blending effects, color bloom effects, interlacing artifacts, etc.) It's a very deep rabbit hole you can go down.
Sadly the 40" have a framebuffer and I didn't have a chance to find a way around it. The 43" in the post has a bypass.