Blake's 7

A rebel named Roj Blake, who once tried to organize a resistance group to overthrow the corrupt galactic federation, was caught and divested of his memories. But Blake's revolutionary spirit is revived when he witnesses a mass slaughter by police that is covered up by the federation officials. He escapes exile on board a prison spaceship and, together with a lovable band of outlaws, takes over a vacant alien space cruiser of awesome drive capability.

Blake's 7 © BBC MCMLXXVIII