A selection of the best recollections on the site picked by you, the users.
"Probably the greatest TV tie-in of all time. They had crossover stories between XL5, Stingray and Lady Penelope." jamxl5 on TV Century 21
"It marked a turning point in TV science fiction due to its conception as one story arc spanning five years." TheBebopcowboy on Babylon 5
"I have a vivid childhood memory of Steel stuck on barbed wire and of being scared silly about photographs for weeks." ThursdayLast on Sapphire and Steel
"I remember as I child hoping I might be next to 'break out'... that was the joy of it - it could be your turn next!"
m_gillyon on The Tomorrow People