Just as I thought the craft is in the grip of an alien force - non folk music. people are listening to this stuff, dancing, thinking improper thoughts - for it has strange powers.......

Oh horror! Will we ever return to the days when the whole room fidgetted in glum concentration on slip jigs that nobody danced to, and the thrilling adventures of the pretty ploughboy.....?

Theres nothing for it......the phasers have jammed! We must go up to Warp factor 20, try to break out from the space time continuum, til its 1972 again.

(This is the bit where everything starts shaking on the deck of The Enterprise, and the 'walk on ones' run round a bit!)