Nashville 10 p.m., Channel 5
I am happy to see that the show has kept Michiel Huisman’s Liam on for a series of episodes. Huisman, who is from the Netherlands, has a lovely, gentle presence that can also veer into bad-boy territory. Fans of “Treme” know him as the street musician Sonny, who has struggled with drug abuse. On “Nashville,” he’s the producer who has helped Rayna find her new sound. Wednesday night, Rayna’s husband, Teddy, reveals his suspicions about the relationship between Rayna (Connie Britton) and Liam.