Looking at guides for some of the episodes this week, it seems like this was a week of scary segments (despite airing in February). It had this banned episode, it's been pointed out that the infamous "Cracks" appeared in the next episode, but a couple days ago I found that episode 849 has "Arthur and Annie look for A", which may not be as infamous and I don't know if it was banned (though I haven't seen it listed in many episode pages), but I've seen a few people mention being a little scared by it, and I feel it is a little freaky. Interestingly, while looking at editing history from before it was determined that segment was there, I saw it was listed as "Filmfair A", I guess that;s the company that produced/animated it. Muppet Wiki does not yet have a page for Filmfair, but I saw that a few episode pages list segments with titles like "Filmfair G" and "Filmfair Q". I've tried looking up the company on Google, found a wikipedia page but am still unsure if the company primarily did stop motion or regular animation.
Maybe I should look at the guides for episodes 746 and 750 to see if each episode from the week had something that's known to be somewhat scary.