I didn't but my husband did, I can ask later! My initial thought is that the hand signals were loading/grouping signals from the Canoe OG, and they were brought over into the Columbia OG accidentally in a well-intentioned "these are all River hand signals" sort of manner. But I'll find out!

No, but he did say in his new contract announcement that he had just finished shooting one of his favorite side quest seasons, and the timing lines up for this to have been filmed then.

6 Golden Coins has an incredible soundtrack, top to bottom.

"Hi there! I'm Otto, and I'm programmed to answer your questions about Disneyland! I can tell you things like wait times for attractions or when you can see the parade! Oh, and calls may be recorded for quality assurance purposes. What can I do for you?"

Party Down mentioned!

Sam/Dropout I'm serious when I say you should sell this shirt.

Most (all?) of Dropout is shot with 24fps, CollegeHumor sketches were much the same as well. It's definitely helped to differentiate it from a lot of other made-for-web content as the Internet has grown.