To give you ideas what we’re looking for, the Hamletclan includes three girls under the age of 9 and the 'rents. We just finished Avatar: The Last Airbender, which was a great series for both the kids and the adults (well, at least one of the adults). Before that was the Planet Earth Documentary by the BBC, which was equally as awesome. Now, with those two gone, I find myself not knowing what we should watch for family movie nights. We’ve also done the Pokemon thing, but those got stupid and tedious.
Anyone have any good kids’ shows we can watch as a family?
A lot of the Miyazaki movies are enjoyable by both kids and adults. My Neighbor Totoro and Kiki’s Delivery Service are particular favorites in the Whatsit household.
Any of the Spielberg cartoons from the 90s. Tiny Toons, Animaniacs, Freakazoid, Histeria, and the related spinoffs. They do lean more toward kids than adults, but there’s plenty of jokes for adults in them as well.
Miyazaki and Looney toons seconded, but I think the OP was looking for series. I’d go with Spongebob; once you get used to the style a bit, its a hoot, for kids or 'rents.
ETA: and the OP has excellent taste; Avatar was awesome.
For now: Dinosaurs! All four seasons now on DVD. As is Jim Henson’s The Storyteller. And Fraggle Rock
For when they’re a wee bit older (the oldest might like these now): Strange Days at Blake Holsey, which airs on Discovery Kids. Eerie Indiana and Batman Beyond are on DVD now. You might be able to stomach Are You Afraid of The Dark, too. Courage the Cowardly Dog on the cartoon network. Maybe by the time they’re ready for these So Weird might finally be out on DVD too.
Rocko’s Modern Life and KaBlam, both from Nickolodeon, are fondly, fondly remembered - still have a few Rocko’s and Action League Now! we recorded on video that were just too excrutiatingly funny not to. I also remember renting Walt Disney cartoons - Silly Symphonies and such, with Mickey Mouse and Pluto, made in the '30s.