Monday night at 9 p.m. ET/PT, CBC airs “Republic of Murdoch,” a crossover episode linking Murdoch Mysteries and Republic of Doyle. The story finds Det. William Murdoch (Yannick Bisson, far right) traveling to Newfoundland with Constable Crabtree (Jonny Harris, middle). They’re hard on the trail of a fella named Jacob Doyle–who just happens to be the