Steptoe & Son, or its American cousin, Sanford & Son

Bzzzt! I don't think either of the last two moves really qualifies. I mean, yes, they were on in the seventies, but by that token you might as well claim, say, The Bible as a 70s book.

Pending adjudication on that, I'll go for Ken Russell's Tommy.

[matt] I kind of see your point, but do you really mean we have to abandon things that were created in the 70's but are still around? And was the bible written in the 70's? I think we should be told.

I'm sure someone's translation was written in the 1970s. Anyhoo...toning it down with Billy Joel's Piano Man.

Blowping BJPM with Up Town Top Rankin' Ting!

Is Kraftwerk authentically 70's enough?

[rab] No, I mean we have to abandon things that were created before the 70s -- the 60s in the case of Steptoe and Dad's Army. Although both shows continued to be made in the 70s, there's nothing really 70s about them, to me anyway. Others clearly disagree. I shouldn't think there'll be much argument about on Bolan's TV show Marc, though.

[matt] Ah, understand now.

if not Dad's Army try M*A*S*H there's the 1970 Film followed by the TV series, 11 in all. If you like that sort of thing you can get the first three TV series on DVD (Region 1 only though).