Wednesday's TV highlights: The CW's 'Riverdale' on KTLA

The Blacklist Red and Liz (James Spader, Megan Boone) face off as the drama about the bag of bones reaches a moment of truth in the season finale. Julian Sands guest stars and Harry Lennix also stars. 8 p.m. NBC

Riverdale Fred (Luke Perry) could use a boost on election day, so Archie (KJ...