The third and final part of Series 3 of Sherlock will be aired on BBC One in a few hours. Back in December, we did a post featuring a LEGO Sherlock animated teaser trailer from Alexander of Legostudio01 Brickfilme. He has finally completed the full launch trailer for Sherlock Series 3 and it looks really good. It has taken Alexander a long time to complete but it was time well spent. Check out the LEGO version of the launch trailer below.