Yes, that's a pretty good assessment. Apparently they made a living at this, but it's hard to see how. It just seems pretty much like random, nonsensical stuff off the top of their heads. I can sense that Sales might have had some appealing talent with some decent material, but Dooley seemed just irritating all around.
Glad you liked this one.
What he said was, "This, ladies, is what is known as genuine, unborn Airedale." But I didn't exactly understand the joke, either. I guess he's saying the coat looks no better than a dog's fur, but I don't know about the unborn part.
Here's one I think I've posted before, but bears reposting here. It's the classic Burns and Allen routine Lambchops from 1929, their first film. The jokes here are not hilarious, but their rapport is charming, and Gracie is really cute in this. (By the way, notice the former mystery circle puts in an appearance in the upper right at 7:53. )
https://www.youtube.com/watch?v=Vo6-no3sIXA