Sherlock Season 3 Video: New Teaser Trailer! By Michael Ausiello / November 23 2013, 3:23 PM PDT 14 Sherlock Holmes is trending worldwide. PBS Masterpiece has released a new teaser trailer for Sherlock‘s massively anticipated third season (premiering Sunday, Jan. 19), and among the new revelations: Sherlock’s resurrection is a big hit on Twitter. VIDEO | Sherlock Season 3 Sneak Peek: He’s Alive! If you like TVLine, you'll LOVE our weekly newsletter. Click here to subscribe.