And just like that, David Tennant was accepted as the Doctor.

He put so much soul into his role, the music is mesmerizing, the dialogue is iconic, everything is tense. I will miss him ?

A regenerating Doctor (with Rose) crashes back in London but struggles to overcome the process (he's sleeping), while the Sycorax take a fancy to Earth's inhabitants who they wish to own and possess. Soon a third are left in limbo, stood on ledges though it's Chrimbo and there's only Doctor Who knows what to do! As it transpires super-heated tea is the answer, turns the Doctor into a lancer (well knight or swordsman, although he does become Sir Doctor of TARDIS in the next but one episode) and the saviour of the planet (and everything else) is born again - on Christmas Day no less.

This instantly picks up where The Parting of the ways left us, Tennant is now the Doctor and suffering trauma from his regeneration. Rose heads for her mum's place to spend Christmas but is soon being chased by Robotic killer Santas and lethal Christmas trees. The Sycorax make their first and only appearance, positioning their ship above London and controlling people with A+ blood. PM Harriet Jones pleas for the Doctor's help, who is bed ridden. The Doctor recovers in the nick of time to save the day.

The humour once again belongs to Jackie and Mickey, there are some great lines throughout, my favourites being Jackie's 'I'm gona get killed by a Christmas tree,' and Harriet's 'did we ask about the Royal family, oh they're on the roof,' love it!! The concept of the killer Santas acting as pilot fish for something bigger is a clever one. Harriet Jones (love or hate I know) shines once again, she goes from scatty and lovable to cool, controlled and scared at the end where she destroys the Sycorax. The Sycorax themselves are extremely well designed. We only get about 16 true minutes of David Tennant, but what we get is brilliant. Moment of the episode must be the destruction of the Sycorax ship, and the Doctor's reaction to Harriet.

The imagery again is superb, it looks so good, its production values are extremely high, the scene of the mass of people walking onto the rooftops is a very powerful one.

I applaud the Christmas Invasion for its originality, it would become the format for the annual seasonal adventure. Had this one not worked it would never have recurred. The Christmas link is well devised, it doesn't feel forced. It's a great episode, with some real high points, it's hard really to pick fault with it.

What is the significance of the 6 words? was it paranoia that caused Harriet's demise?

I was a huge Eccleston fan, but it wasn't long before Tennant surpassed Eccleston in the role to become arguably the best Doctor to date. I can remember watching the Coming Soon trailer, and being utterly blown away by it.

9/10