No previous experience with Doctor Who required.
No previous science fiction fandom required.
No really. People have loved it without either of those. The leads are solid and the stories are too. Past fans will have to get over the lack of wobbly sets and on-the-cheap F/X--they did it thoroughly this time around. Give it a shot, tonight at nine, or check the rerun schedule.
*sly voice* "Try it, you'll like it."
... man, now I need some Doctor Who icons that aren't spoilery for this season for you guys...