Doctor Who: The Doctor's Regeneration Episodes Ranked Worst To Best

Thank goodness the Doctor's curiosity got the better of him and he followed those tracks. Otherwise the timey wimey would've gone wibbly wobbly resulting in a world where we didn't have not only the best regeneration story, but simply one of greatest Doctor Who stories of all time.

It perfectly blends a spectrum (or spectrox) of greatest hits from both Classic and NuWho, which is nicely represented by the fact it's written and directed by Who doyens Robert Holmes and Graeme Harper, respectively. Speaking of Harper, Peter Davison enthused: "I would say he was like a breath of fresh air, but actually it was more like a hurricane of fresh air... we were all swept along on this Graeme Harper whirlwind of brilliance." No wonder it's Davison's favourite serial, making him even question his decision to leave.

We get two memorable villains. Sharaz Jek is pure Phantom of the Opera: right from the gimp-mask covering his disfigurement, the dangerous obsession with Peri, to hiding in the depths of the caves. Morgus the master manipulator is cold and calculating - expertly exploiting from the vanity of humanity. He's so cunning that he even breaks the fourth wall on some occasions.

We get high-octane cliffhangers amongst the brutal action-packed four episodes. We even get to see the Doctor put his decorative vegetable to good use!

This is Davison at his best, in his best story. This is the Doctor at his finest hour.

Goodbye cricket and celery. Hello cocksure a la bouffant: an heroic self-sacrifice followed by brief trippiness, making this the best Classic Who regeneration scene, even though Davison once joked that "most of it starred Nicola Bryant's cleavage, as I recall!".