This is the dramatization of Asimov's orginal 1941 short story, broadcasted in 1950 (very good quality). It is about a world called Kalgash that doesn't know what a night is due to it's six suns. But darkness is coming and fear is the companion that may prevent the planet's civilization from seeing the stars for the first time. The story was turned into a novel by Robert Silverberg in 1990 with Asimov's blessings and assistance but no dramatization has been made of it, as far as I know.
You're going to hell, Jack Nightingale': They are words that ended his career as a police negotiator. Now Jack's a struggling private detective - and the chilling words come back to haunt him. Nightingale's life is turned upside down the day that he inherits a mansion with a priceless library; it comes from a man who claims to be his father, and it comes with a warning.
Peter Harris, a dispirited Soho gallery owner in his midforties, arrives home to find his wife in the shower and marvels at how lithe she looks through the steam, then realizes that he’s admiring her much younger brother. Called the Mistake, or Mizzy, he’s a lost soul, a junkie and moocher as sexy as he is manipulative. Mizzy appears just as Peter, brooding, romantic, and self-deprecating, is grappling with his failings as a father and an art dealer.
