One of my all time favourite shows! I love the SiFi, I love the characters, I love the humour, I love the fact that it's often interlaced with matters that we are actually currently dealing with. There is so much to Dr Who.
If you like fantasy then I totally suggest watching Legend of a Seeker. Follows all the classic structures of fantasy epics. Also it was filmed in New Zealand. I highly enjoyed watching this when it aired on TV and then also rewatching it later on.