Does it seem like the creators had fun doing it? If so, then they probably did. If a show looks like it was a torture to put together then it probably was.
It’s funny how you can pick up on that kind of thing just by watching a show. There are tons of great examples (Freakazoid!, Ren & Stimpy, early Fairly OddParents) but perhaps none greater than the Simpsons. Episodes from the Golden Age flow along as if the writers were bouncing off the walls. Current episodes make it seem like their almost chained to their desks trying to think of funny stuff.
It’s something to keep in mind in the course of your work. Even though you may not purposely or conscientiously insert it into your creation, it still shines through and can greatly improve its reception with the audience.