I was going to say Farscape! Glad to see it was your example :)

Tim Curry.

I love Emmet Otter's Jug-Band Christmas.

Aside from still being amazing for what they were able to do, it was also the test that established that they were able to make full length feature films.

Mahna Mahna.

Makes me my other half crack up when she's got the giggles. Which reminds me i need to make a new ringtone and swap out the woodchuck song on her phone...

The Swedish Chef is another good one. There are stories about when they were filming and even the studio crew were trying not to make noise while laughing.

I was a big fan of all the hidden shit in labrynth, the shots where you’d see one thing and they’d shift perspective to show you something else, like the rock face or the hidden passages. Thats still enthralling to me because they are very very good visual illusion effects.

The helping hands were also great. I wish they’d done a little bit more with those, maybe in other places, and not just the oubliette scene.

Martians impersonating Earth things

It's simple and early, but I love this bit from the Ed Sullivan show back in 1967.

Chilly Down with the Fire Gang from the film Labyrinth

Bonus: the entire thing was choreographed by Cheryl McFadden, a.k.a. Gates McFadden, a.k.a. Dr. Beverly Crusher

The Dancing Doctor indeed

I guess I'm old school, but I just love Kermit the Frog's range of facial expressions, especially when he's interacting with Miss Piggy.

The OG 1990 Teenage Mutant Ninja Turtles movie. I think it still holds up. It's a great movie.

The pilot on Farscape, and the Martians on Sesame Street.

dunno.

i like gonzo and fozzy. and rizzo, when he shows up.

That part in the Dark Crystal where they cast the Chamberlain out. Sooo many moving parts, a large area to cross, lots of interaction. I'm amazed they pulled it off. I wonder how many takes it took.

Wilkins coffee

what the hell. i never watched farscape and was not expecting gory horror shit. add a warning, OP, shit. i didn't need that added to my nightmares.

FarScape is amazing for a lot of reasons.

While not a special effect, I always loved the Muppet Show for its antics in particular. They did so much with practical effects, and they did it amazingly well.

Please enjoy one of my personal favorites, The Windmills of Your Mind.

I'm also going to nod at Peter Jackson's "Meet the Feebles" for being a methed out seedy underworld puppet variety show movie. The effects are super campy and cheap. It's spectacular low budget grade b nonsense that will make you go "what the fuck did i just watch?".

Not sure if it counts but I love Bear from Bear in the Big Blue House. Just lots of creativity with some clear constraints.