Here is a look at what to watch on this Sunday evening. ABC:  American Idol (8pm), Shark Tank (10pm) CBS: Redline (8pm), NCIS: Los Angeles (10pm) NBC: Good Girls (10pm) AMC: Killing Eve (8pm)  A Discovery of Witches (9pm) Bravo: Real Housewives of Potomac (8pm), Watch What Happens Live With Andy Cohen (10pm) CW: Supergirl(8pm), …