First of all, I was bored - and yes, that's my excuse.
What I did, was trying to find links between my TV shows. My parameters were that a person had to appear at least 10 times on one show and at least 5 times on another.
The result is this:
http://home.arcor.de/djdoena/upload/SixDegrees.htmlWhat suprised me is the number of "Hub Series" that connect to a whole bunch of other series, I had thought there would be more dead ends or completely separated entries (the one at the end).
Now the question is, how many steps does it take to connect
MacGyver to
Doctor Who?
MacGyver - Teri Hatcher - Lois & Clark - John Shea - Gossip Girl - Kirsten Bell - Heroes - Christopher Eccleston - Doctor Who
(Don't know if it's the shortest way though)
A strictly forward way is not possible since no series points to Doctor Who (Christopher points only away from it)