I am stunned. Absolutely stunned. Check out this post (H/T to Rob Neyer) that connects heaps of TV shows back to St. Elsewhere, which was, according to its finale, entirely the product of an autistic kid's imagination.
St. Elsewhere folks visited Cheers and Cheers overlapped with a bunch of shows and so on. One universe, Tommy Westphal's universe:
Yow! I think the post goes too far, suggesting that real events were not real--the 2004 Red Sox World Series victory, for instance. But the fictional TV shows--Cheers, Boston Public, Boston Legal, Homicide, Frasier, Caroline in the City, Friends, Mad About You, Seinfeld, and so on (including M*A*S*H and the Dick Van Dyke show) all belong to the same universe. To be fair, as Mrs. Spew pointed out, all the shows that precede St. Elsewhere could have entered Tommy's imagination from watching TV. So, I would suggest a temporal cutoff--all that precedes St. Elsewhere is probably not a product of Tommy's imagination. But that still leaves us with a heap of shows.
I am now going to dive into the Tommy-verse. If you don't hear from me by next week, call the police and also call Tom Fontana (who helped write and run both St. Elsewhere and Homicide).