Pet Shop Boys Neil Tennant and Chris Lowe discuss their BBC late-night Prom which includes the world premiere of A Man From the Future, about Enigma codebreaker Alan Turing with John Wilson.

When “it’s a sin” was released in 1987, gay marriage was barely a dream. Margaret Thatcher’s government would soon pass a law banning the “promotion of homosexuality” in classrooms. Neil Tennant, Pet ...