Supergirl In an all-new four-series crossover event, this superhero drama starring Melissa Benoist launches a story line that continues tonight on “Arrow,” then concludes Tuesday on “The Flash” and “DC’s Legends of Tomorrow.” 8 and 9 p.m. KTLA
Street Outlaws This auto-centric unscripted series set in Oklahoma City returns with a trio of new episodes. 8, 9 and 10 p.m. Discovery Channel
Fashion Police This unscripted series famous for its snarky take on awards-show style airs its final episode. With Melissa Rivers. 8 p.m. E!
Ride With Norman Reedus “The Walking Dead” costar cruises around...