Drtooth has often mentioned how he thinks C&C was a stupid show, and I've often disagreed, because I feel that as an adult and having a better understanding of the humor that it was actually a pretty smart and well-written show . . . for the most part. Thinking back on it, there were a number of episodes, particularly from the last season that were pretty bizarre; I've been thinking about one in particular today and realized there's some parallels between it and SST:
Cow finds a monster in her closet and they quickly become the best of friends - much like how Big Bird discovered Snuffy and they quickly became the best of the friends.
Cow tries telling the others about Mr. Monster, but they don't believe her because they can't see him and he must therefore be a figment of her imagination - very much like how Big Bird tried to convince the adults Snuffy was real, but they always missed him and dismissed him as being his imaginary friend.
Mom and Dad eventually discover Mr. Monster for themselves and realize that he is real - much like how the adults eventually saw Snuffy and realized that he was real . . .
But then Mom and Dad, out of their own irrational fears, tell Cow she can't be friends with Mr. Monster anymore, and force her to banish him back to the closet, which breaks both of their hearts - this is kind of similar to how Big Bird is finally convinced by the adults that Snuffy really is imaginary and they can't be friends anymore, causing them to cry on each other.
The big twist is that Chicken then discovers Mr. Monster in another closet (which is odd, because earlier, even Chicken couldn't see him) and they end up becoming friends instead since Cow decides that Mom and Dad were right all along that he never existed (which makes him sad).
But like I said, what was really weird is that Mr. Monster was somehow like a Gazoo in that apparently only Cow could see him: when she gets ice cream for both of them, the ice cream man can't see him; when they play jump rope and Chicken, Flem, and Earl watch, they can't see him; but then Mom and Dad saw him, yet Chicken still couldn't . . . but then, Chicken finds him in another closet. I think the writers couldn't make up their minds as to whether Mr. Monster could be seen or not.