http://home.vicnet.net.au/~kwgow/crossovers.html – how characters in one show relate to another. Superman, Get Smart, Maude and St. Elsewhere all take place in the same universe.

216 shows are connected to Homicide: Life on the Street and St. Elsewhere, for a grand total of 218 series.

Here’s a handy Chart.

http://home.vicnet.net.au/~kwgow/crossovers(full).jpg

and key to crossovers –

http://home.vicnet.net.au/~kwgow/cross_stats.txt

or, you could just join , and watch how things flow together.