Supergirl (8 p.m., CW) – In the Season 2 premiere (the show’s first season on The CW, though), Supergirl and Clark team up to stop a new threat emerging in National City.
2 Broke Girls (9 p.m., CBS) – In the two-hour season premiere, Max tries to cope with her recent breakup with Randy.
Lucifer (9 p.m., Fox) – Lucifer and Chloe investigate when a video of a murder is posted to social media.
Timeless (10 p.m., NBC) – Lucy, Wyatt and Rufus track Garcia Flynn to the night of Lincoln’s assassination, where he has joined up with John Wilkes Booth, and the team debates whether they should alter history.
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Conviction (10 p.m., NBC) – A young woman’s character takes a hit in the press during the investigation of three men who confessed to raping and robbing her 10 years earlier.