When I was a kid, I caught Doctor Who, a year or two after its British release, on my local PBS station. Tom Baker was king back then. At that time, in Madison, there were four TV channels, and one of them was PBS.
I thought Season 1, of the "new" Doctor Who series, was silly, or rather, those episodes that I saw were silly. I'll catch them eventually, in re-run, and perhaps revise my opinion. However, with this new doctor (Seasons 2 and 3 so far), it's...kind of amazing (his page is at http://en.wikipedia.org/wiki/Tenth_Doctor). Really good drama, regardless of the SF.
As such, I thought I'd point to a few fun links:
The Wiki on it: http://en.wikipedia.org/wiki/Doctor_Who
Kylie Minogue will guest star in a December 2007 Christmas special, though I am unclear on whether that will be in the U.S. by then.
The Wiki on the TARDIS. (they're grown, not built): http://en.wikipedia.org/wiki/TARDIS
The current Doctor Who series has a spin-off, Torchwood, designed as a "series in the style of the American shows Buffy the Vampire Slayer and Angel (both highly popular in Britain), and even having those series' James (Spike) Marsters as a guest star: http://en.wikipedia.org/wiki/Torchwood . Note that Torchwood premiers tonight on BBC America, (a year or so later than in Britain, which is usual), and their site is http://www.scifi.com/sfw/screen/sfw16914.html. I don't have BBC America access, so it looks like I'll be buying the DVD's.
In another Buffy tie-in, Tony (Giles) Head appears as a villain in the animated series, per information at http://en.wikipedia.org/wiki/Tenth_Doctor .