Look away now if you haven't seen last night's episode of Doctor Who, the one called Utopia guest-starring Derek Jacobi.
Honestly, look away if you want the episode spoiled.
Okay, but don't say I didn't warn you...
The Master's back! And he's played by Derek Jacobi. And then by John Simm. And he's stolen the Doctor's TARDIS. And left the Doctor and Martha and Captain Jack stranded near a quarry - sorry, I mean alien planet at the end of the universe.
Way-hey, it's like the 1970s never ended! Next thing you know, people will be wearing flares, taking prog rock seriously, going to Pink Floyd concerts and wishing they'd make another series of that cop show about the two dangerous detectives who race around in a Ford Granada sorting villains before going down the boozer.
Hmm, maybe the 1970s never did end?