I'm surprised, the lost episodes page says that it contains an Ernie and Cookie Monster sketch called "milk and cookies" that doesn't appear in any other scripts, but it doesn't seem to be noted in the sandbox page (there's a different Ernie and Cookie Monster sketch, one with a screenshot). Was this a mistake? I was interested in knowing about that sketch (unless it's one where the first appearance in a script only lists a title and no scripted info).
There's also a sandbox page for episode 1350, which I thought a video copy had already been used to make a guide.