Perhaps serving you they felt the reached a level of perfection they could never follow and it was all down hill from there.

Nope! It's gone. Time for a new one!

So now you can send the dog to the vet without having to go yourself? 😀

FYI, all the early doctors have their episodes for free on TUBI.
I love the new doctors but the old ones are fun to watch once in a while as I grew up on them!