Awesome Crossovers: Still Awesome After All These Years

   Crossovers happen alls the times, which has the side effect of maybe creating the existentially confusing Tommy Westphall universe, but has the upside of being awesome. Some of my all-time favorite crossovers:

1. T-Bag from Prison Break showing up in Breakout Kings. Unannounced, unexpected. Awesome.
2. The Millennium finale took place in X-Files. (When they did do the same thing for the finale for the Lone Gunmen it's not the same thing, as the Lone Gunmen was itself a spinoff from the X-Files.)
3. Speaking of X Files, that (non-canon) time they crossed over into the Simpsons.
4. You know who else crossed over into the Simpsons? Jack Bauer.
5. Cinnamon Carter from Mission: Impossible showing up in Diagnosis: Murder (makes sense, considering the similar titles), which is itself a spinoff of Jake and the Fatman and from here it gets into all kinds of nasty Tommy stuff so this is why I'm only selecting my favorite crossovers. 
6. There was one other one, but I forget. Oh, yeah: the Hawaii 5-0 remake apparently takes place in the same universe as JAG, due to the NCIS: LA crossover event. I think this makes both Hawaii 5-0s exist in the same universe, because maybe I'm just making this up but wasn't there like a Hawaii 5-0 / Dragnet thing?

   And this is why we don't play with matches.