I love Doctor Who

I do not fall in love too fast.
But Doctor Who, .... is another story. Although there are many beautiful SF series, Doctor Who, after watching it leave something memorable. Something remain as a pleasant memory, living noteworthy.
Probably only a few will understand this, and is no wonder. Love your imagination, try to make use of the imagination, is not for everyone.
How to be pragmatic? Where reality begins and where it ends?
But a story like this, a fascinating one, can not find the roads at every street corner.

What is the best science fiction series of all time?

The best science fiction for television, the film brings into question notions besides SF many educational , real events or real limit, which combines the impossible with possible and raise physical theory which just is written on paper: Stargates SG1.
 Stargates SG1 delight us since the first episode of the first season, and holds us close episode by episode, managed to endear us to the main characters. Characters have charm, they seem to be born for this movie.
And I would call that a 2nd place in Best SF of all time: Doctor Who.