Recording Top of the Pops every Thursday night using a tape recorder with a tiny microphone balanced in front of the TV, and wondering what it 'meant' if your friend's brother said hello once on the school bus all seems hilarious in an age of MTV and The Jerry Springer Show. But this was the seventies, and Jackie magazine, with its combination of breathless pop news and teen advice, was an unforgettable part of it. Opening Jackie: The Seventies is like being given a ticket to travel back in time. Hilarious, nostalgic and utterly compulsive, it transports you straight back to a world where midi skirts were all the rage, Donny Osmond and David Cassidy split the nation and Cathy and Claire were the only voice of reason.