My biggest gripe with Cartoon Network is how poorly they treat the things they're named for. Again, biggest example is the rebooted ThunderCats series. This show was great. But Cartoon Network barely advertised it, then changed its timeslot, and all indications are that it is dead without any official word one way or the other.
"Geez, we've been back together for five minutes Doc, and you're already talking about the end of the universe."
"Stupid, stupid rat creatures!"