Spies dominated the big screen in the sixties and they spilled out onto the small screen as well, with numerous programmes delving into the murky underworld of the secret agent. But arguably the most popular ITV spies were John Drake and David Callan: Danger Man: (ITC tx 1960-68) with Patrick McGoohan; Callan (ABC tx 1967-72) with Edward Woodward. All tickets: £3.50