I started this - Category:Incomplete Sesame Guides - as I plan to make a few guides based on stuff I've gotten recently with no known episode number.
This is not a space for putting things like Episode 2943. This is purely a sandbox-type place for rounding up guides for unknown episodes, so we can at least have some of this stuff documented and, in the case of them ending up online and being taken down. They can be easily moved if and when we can get an episode number.
So please, no adding actual, episodes we have numbers for that are just incomplete.