Doctor Who Dimensions 2Crossovers are a funny thing; as I alluded to earlier in the week, most early crossovers were between popular shows on the same network that weren’t necessarily meant to be in continuity with each other when they were created. That’s how we end up with things like Adam West’s Batman and the original Green Hornet in the same universe. This tends to have some strange consequences, where previous in-jokes (like Batman watching Green Hornet on TV) no longer make sense or cause outright contradictions when trying to combine the two continuities. And while a main character crossing over is by far the easiest, most obvious, and hardest to deny of all the crossover types, there are many, many other ways for two shows to imply that they coexist in the same universe–some of which don’t even necessarily require permission from one of the shows! And that’s how we end up with these, some of the weirdest crossovers seen on TV.

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