Wouldn't the shark be the literal poster child of that moment on the show?
But yeah by the time Richie left, and that new character came on, the show had already long ago jumped the shark.
What's funny is that same actor (at least I think it's the same guy), actually helped when he was used as a late season addition on Married With Children.
This made Scooby pretty much unwatchable.
and...
Although Hate is to strong a word for any of these, more just annoyed me whenever they came on.