Marlon (9 p.m., NBC) – This new sitcom loosely inspired by the life of Marlon Wayans debuts with two episodes. First, Marlon and Ashley attempt to have a friendly divorce but it gets complicated when Ashley starts dating. At 9:30, Ashley challenges Marlon to shed belongings by having a yard sale.
Also on tonight . . .
CMA Fest (8 p.m., ABC) – Performances by some of country music’s hottest stars are featured from the four-day annual music festival in Nashville. Some of the stars at CMA Fest included Chris Stapleton, Scotty McCreery, Kellie Pickler and Eric Church, but performers in this show were not listed.
The Sinner (10 p.m., USA) – Ambrose uncovers a secret about Cora that changes the investigation.
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The Lowe Files (10 p.m., A&E) – Rob Lowe and his sons search for Bigfoot in the Northern California redwood forests and Hoopa Indian Reservation with hunter Matt Moneymaker.