Top 20 sci-fi/fantasy tv shows

I'd like to add the old cartoon from the early 1980s, "Il était une fois… l'Espace".

Its english translation was "Once Upon a Time...Space".

It is a bit boring, it has a lot of 'filler' and many irrelevant episodes, and many of the plot points don't lead anywhere, the villains are very two-dimensional (pun not intended), but there are also many good points about it, for example:

- Gorgeous spaceship designs (in my opinion)
- Wonderful, melodic, energetic, immersive and atmospheric musics
- Likable main characters
- Interesting 'main story arc' that proceeds every few episodes a bit

- Philosophical points (about all kinds of things, from 'can robots be considered slaves' to 'hierarchy of technological and spiritual evolution', 'different take on history', 'are PSI powers real', 'should people destroy nature', 'what gives a people the right to conquer/colonize a planet', 'does might make right' and so on and so forth - all in all, a LOT to think about!)

- StarTrekTNG-like 'optimistic future' with high aspirations with solving problems by discussing them in 'councils' and such

- Actually relatively believably scary villains (as 'cartoony' as they are, they actually do manage to create a lot of destruction, and their militaristic power greed-mania seems very realistic, or at least believable indeed)

It is in some ways a 'somewhat realistic take' on how Earth's 'civilization' might have evolved into a space-faring people, based on what was going on this planet at the time (of course real space faring is nothing like it).

In addition, the show is inspirational and has some nice, colorful visuals and even some interesting animations.

It did succumb to the 'boring planet of the week' syndrome from time to time. Still, the first episode, the last episode, and a few episodes here and there are absolutely brilliant, and worth watching, and may even teach the viewer some small lessons and give something a bit more cosmic to think about.