Television Crossover Universe

I first became aware of the fictional crossover/shared reality concept when I was five years old. As my family was about to embark on a drive from Massachusetts to California, my father gave me my first comic book to keep me occupied, and it was an issue of the Marvel Comics adaptation of Scooby’s All-Star Laff-A-Lympics. This is the first time I was able to comprehend what was going on here, on a significant level. All these characters from their own cartoons were appearing together, as part of the same reality, thus placing all their previous cartoons in the same reality. From that point on, I started becoming more aware. As I started reading more comics, I noticed how all the DC characters lived in one world while the Marvel characters lived on another, and I mostly only bought team and team-up books. Of course, once Superman met Spider-Man, my mind was blown again. I also started to notice cartoon events like the annual networks previews shows that would combine all their cart...

Updated to incorporate the Horror Crossover Encyclopedia. OK, now I'm going to get some flack here.  I just got down telling people I don't like to conflate characters based on Same Actor Theory, but I'm going to do it here, but it really makes sense to do so here, and I will do my best to make it work. 1952--During this year, I postulate that two cousins were born.  Identical cousins.  Hey, this is a very common phenomenon in the TVCU, as demonstrated by many, many TV shows.  So these two cousins who are born are the children of two sisters, Mrs.  Baracus and Mrs. Lang.  Both of them have of course the same maiden name, which starts with a T.  The two children go on separate paths.  One will become known as Bosco "Bad Attitude" Baracus and will join the military and become a hero.  Meanwhile "Clubber" Lang will enter into the sports world, sometimes using the stage name of Mr. T.  Sometimes, with or without permission, B.A. will...