Dr Who: Britain's favourite alien
I was that child hiding behind the sofa when the Daleks, Cybermen or Zarbi appeared to do battle with the Doctor. Now, so many years later, I'm hooked again to the new Doctor Who programmes. News is that David Tennent is about to leave the show and the whole nation is wondering - Who will be the next Dr.Who?
He makes an unlikely hero: he's the ultimate know-it-all, has real issues with commitment and is constantly in trouble of one kind or another.
Not to mention the fact that he's got two hearts, is almost a millenium old, and comes from another planet.
Yet for 10 incarnations and counting, Doctor Who has been Britain's favourite alien.
If you were to pitch the idea today, the focus groups would laugh it out of the room. A crotchety old man lives in a police box with his granddaughter, and has the ability to travel through time and space which he uses to kidnap a couple of nosy teachers and whisk them back to Paleolithic times.
But since that first episode in November 1963, the nation has been glued to the TV set for the Doctor's adventures.