Czech children's TV is something else. I've seen some of it too and, to my North American perspective, it feels like a feverdream.
In America, Czech cartoons somewhat unfairly have the reputation for being weird, because a dozen Tom & Jerry episodes were made in Prague in the early 1960s in very weird circumstances, on a shoe-string budget by animators unaccustomed to the very idea of violent cartoons. [3] These were received with some confusion by the American audience in the midst of the Cuban Missile Crisis. From this you then have consequent parodies like The Simpsons' Worker and Parasite, which - though not exactly a fair reflection of Czech animation - is absolutely hilarious. [4]
[0] Krtek a telefon / The Little Mole and the Telephone : https://www.youtube.com/watch?v=RYwrCTxF9Oc
[1] Krtek chemikem / The Little Mole as the Chemist : https://www.youtube.com/watch?v=h8xO4PiJ--w
[2] https://en.wikipedia.org/wiki/Alice_(1988_film)
[3] The story of this is told here: https://www.awn.com/animationworld/tom-jerry-produced-prague
There's also a stop-motion TV series for kids, with someone who's always doing some sort of handy man task that gets completely out of hand? What's that one called again?
In terms of general TV humor, I've found it rather similar to English humor. Very dry, a great example is the movie Byl jsem mladistvým intelektuálem (I was a teenage intellectual)[1]. Completely surreal, and worth a watch.
I, personally, rather enjoy it all.
1: https://www.youtube.com/watch?v=q-HNEyBN3Lo (English Subtitles)