Will in The Fresh Prince of Bel-Air died on that basketball court in West Philadelphia. Alien and Blade Runner take place in the same universe. Batman Forever and Batman and Robin are actually movies made within the Batman universe after Bruce Wayne's secret identity was revealed.
These are theories that fans have developed about adult television programs and movies. But inventive and somewhat crazy fans have also spun out hidden connections and explanations for children's television programs. Here are eight good ones.

1. The Count, a vampire, rules Sesame Street. He feeds upon the children and enslaves the adults. Here are some of the arguments that Mighty God King makes to advance this theory:
FACT. The child cast of Sesame Street changes frequently and widely. You rarely see the same kids on the show for more than three or four episodes.
FACT. However, the adult cast of Sesame Street changes very, very rarely.
FACT. Everybody seems to take the fact that a vampire is wandering a New York City street with surprising calm.
2. Alternatively, Sesame Street is actually an exploration of Plato's Republic and, specifically, his Allegory of the Cave. Here is part of the argument made by redditor theterrorofmuffins:
Plato uses the sun and light to represent knowledge, truth, and reason many places in his works -- light allows us to see objects for what they really are rather than in the darkness, and the sun is the source of all light. Plato also emphasizes that true reason is something humans can never fully obtain, but it is something we can work for -- Kallipolis, the ideal city he envisions, is a fantasy that we can move towards, but we can never achieve. As imperfect rational beings, we don't know how to get there.
"Sunny days, sweepin' the clouds away. Can you tell me how to get to Sesame Street?"
Now, what about the philosopher ruler who must pass on his wisdom in order to educate and enlighten the world not overtly, but subtly. In the allegory, the enlightened individual who saw the light of the sun can only achieve this through creating shadowy illusions on the cave wall. However, there are many other "puppet masters" making shadows on the wall for the prisoners to watch, and they deceive and conjure things untruthfully and without reason. The enlightened one, however, because of the inevitability of his rejection were he to convey his reason directly, must use this shadowy mode of illusory puppeteering to get his message across by meager demonstration.
And that is what Sesame Street is -- the shadows on the wall, demonstrations of how we might live in a harmonious society. It's given to us at a young age through television by it's enlightened creators so that we might adapt to and absorb its positive message. Thank you, Sesame Street.

3. Do you remember Gargamel, the archnemesis of the Smurfs? He has a spell that will let him turn Smurfs into gold--provided that he has at least six Smurfs. This is among his motivations to hunt them. At other times, he wants to destroy them just to rid the world of their happiness or to eat them. Why would Gargamel want to eat the Smurfs? Because their flesh is an addictive hallucinagenic. CoCoa explains:
The Smurfs live in houses made og hollowed out mushrooms, they hollow out the mushrooms by eating the insides of it.
Psilocybin is the chemical compund in mushrooms that causes hallucinations. [...] Garagamel wants to eat the Smurfs because they are pure concentrated Psilocybin.
