Originally Posted by Beer Monkey
(Gapped) scanlines were never very common back in the day outside of the arcade, where the monitors were were tightly focused and large. Also Amiga/Atari computer monitors had a big of a scanline effect when fed by consoles; typical consumer TVs not as much.
The bigger the screen and the tighter the focus of the electron beam the more likely you'll see scanlines. PVMs and BVMs have a much tighter focus than consumer sets.
High "TVL" aka "lines of resolution" doesn't really cause the 'scanline' visibility; that's just bullshit that YouTubers say; they spread so much myth in this hobby. TVL is just horizontal resolution. It's just that most sets that are engineered to have high TVL also have tighter focus of the electron beam!
This is what I get.