"Star Wars is adolescent nonsense; Close Encounters is obscurantist drivel; Star Trek can turn your brains to puree of bat guano; and the greatest science fiction series of all time is Doctor Who! And I'll take you all on, one-by-one or all in a bunch to back it up!"

"I would have loved to have done a Star Trek crossover. The very first year, we talked about it. Then Star Trek finally went off air. Landing the Tardis on board the Enterprise would have been magnificent. Can you imagine what their script department would have wanted, and what I would have wanted? It would have been the biggest battle."

"Because it's the best idea ever invented in the history of the world!"

"Doctor Who can help us contemplate a range of different moral and religious scenarios, allowing us to explore in a fictional setting the way we think about beliefs and ethical viewpoints which differ from our own. The breadth and depth of its mythology help us do this, whatever our view on religion. This is a show that attacks false gods and superstition, while at the same time admitting that immortal beings beyond our perception exist. While it has never pronounced directly upon the existence of God, Doctor Who's narrative is open enough to be read positively by both believers and atheists as supporting their world view."

"It's Time You Knew Him (Series 8)"

"Don't Blink ("Blink")"

"A change is going to come...(The Time of the Doctor)"

"Save the Day (The Day of the Doctor)"

"His Secrets Revealed (The Name of the Doctor)"

"Time Runs Out (Let's Kill Hitler)"

"Silence Will Fall (Series 6: Part 1)"

"Trust Your Doctor (Series 6, BBC America)"

"Time Can Be Rewritten (A Christmas Carol)"

"The End Is Just The Beginning (Series 5)"

""When Two Worlds Collide, Anything Can Happen..." (Series 3)"

"Think you've seen it all? Think again... (Series 2)"

""Something's Coming..." (The Christmas Invasion)"

"The Trip Of A Lifetime! (new series, Series 1)"

"He's back...and it's about time. (Doctor Who: The Movie)"

"Jenna Coleman"

"Catherine Tate"

"Freema Agyeman"

"Billie Piper"

"Alex Kingston"

"Arthur Darvill"

"Christopher Eccleston"

"David Tennant"

"Matt Smith"

"Karen Gillan"

"John Barrowman"

"Peter Capaldi"

"Steven Moffat"

"Neil Gaiman"

"Russell T Davies"

"Douglas Adams"

"Robert Holmes (scriptwriter)"

"The Krafayis"

"The Toymaker"

"The Sontarans"

"The Slitheen"

"The Silence"

"Restac/Alaya"

"The Reapers"