Doctor Who?
I don't know if I'd like it or not - never actually watched it...
Jon Pertwee was my first doctor then came Tom Baker. After him I lost touch as life took over and I came back to it for Paul McGann. They have all been good since.
The David Tennant series seemed to do very well. Seemed that Americans were into it too from what I remember.
The Tom Baker repeats were something that I'd dip in and out of. Which given the somewhat crazy nature of that show (and him as doctor - seems brilliantly eccentric and I've seen him on Fort Boyard too), made it harder to follow.
Entertaining though.