When you're binge watching your favorite TV shows it's easy to see connections between them in terms of plot points, characterization, and gags, especially if the shows you're watching are all from the same genre.
But different shows by different creators rarely cross over for real, mainly due to licensing and network restrictions, so these theories about shows sharing a common universe are impossible to prove...or are they?
Creator of The Wire David Simon came up with a shared universe theory involving his character Detective John Munch from Homicide: Life On The Streets and Law & Order: SVU, and then he proceeded to blow our minds by putting Munch in shows like The X-Files, 30 Rock and even St. Elsewhere.
And that's where the Munchverse intersects with the Tommy Westphall Multiverse, which says that all kinds of shows are actually just playing out in the mind of young autistic boy Tommy Westphall, a character from St. Elsewhere. So does that mean Munch is actually God? Wait, I'm lost...