I came across this: a complete list of Sesamstrasse episodes. Most have airdates and less have actual descriptions, but there's definitely a lot we can mine from here if anyone is interested in making pages from them.
Ooh. When they do have descriptions, they're sourced (newer ones from the network, older ones listing HÖRZU (the German TV guide). I'm working on other stuff right now, but I'd definitely want to make use of it. Great find.
Some of the early stuff (like some of the German film inserts) matches or adds info to what the Sesamstrassefan site has. So I can build some of those (especially since several listings ID filmmakers or guest or something).
Oh, I think I've shared this but if I haven't, director Christoph Busse (who did many recurring and one-shot film segments, including songs which he composed and did off-camera vocals for) has put a bunch of his stuff on YouTube in full (I've been using it to fill in actors). His name crops up at least twice that I've found so far (and I haven't fully explored yet), pretty much offering EKAs for his shorts. Here's the link to his channel (look for the "Sesam Klassiker" label and playlists).
It's great to know that I was 2 weeks late for Folge 2277, which I think is the last ever Tiffy episode. The date was based on calendar inspection based on a new episode every week rather than actual documentation.
It's also amusing how there are other co-productions we haven't been tracking.