HBO, the esteemed home of prestige television, released the trailer for their new series Beforeigners, about modern-day Oslo suddenly finding itself overpopulated with time-traveling visitors from the past. Specifically, vikings. You’d think after that truly slam-dunk portmanteau of a title I would’ve been prepared for this trailer, and let me assure you that I was ridiculous to believe that. Beforeigners follows in the time-honored tradition of shows like Lucifer by selling an aggressively batshit premise as a procedural cop show. That’s right - one of the time-traveling vikings joins the police force and …