Apple releases 'Silo' season finale teaser on Twitter.

Apple has uploaded the entire first episode of its sci-fi dystopian TV show “Silo” on Twitter, three days before the streaming service is set to air the show’s season finale. The move is a way for Apple to garner excitement for one of its popular shows by letting people watch it for free in the hopes that they get hooked on it and sign up for an Apple TV+ subscription.