For me, it has to be all the shows that Gen Alpha grew up with like Paw Patrol, Blaze and The Monster Machines, PJ Masks, Daniel Tiger's Neighborhood ect. But that is just me since I'm of a gen-z cohort so now I pass it onto you to give me your feedback on shows you say that make your blood boil
Dive, Olly, Dive is a show made by the same people who made Chloe's Closet, Mike Young Productions. the show first aired in 2006 in the US from what I've found. This show is pretty obscure and I don't think a lot of people have heard of this before or even know this existed. This usually gets outshined by the more popular Clifford the Big Red Dog. I reckon even more people know Chloe's Closet than this.
I swear PBS Kids is going downhill with those new shows! I hope Curious George and others we like come back in 2027 next year!! And I hope some of the newer shows get removed too!