Yeah, there were pretty much two types of pixel art in games. Those made for TV-based games up to PS1 which are expected to be seen through CRT blur so they rely more on complex gradients and precise use of contrast. And those made for LCD portables, which were always expected to be sharp and clear and tend to lean more into a blocky style. Modern indie games are largely an evolution of the latter.
Depends on the game but I don’t think people needed high-end TVs to notice the difference. When I was a kid and I first tried emulation, I remember noticing how some games looked weird and blocky on PC, even though my CRT TV was an extra blurry hand-me-down.