Monday’s TV Highlights: ‘Full Frontal With Samantha Bee’ on TBS

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Kevin Can Wait Kevin and Donna’s (Kevin James, Erinn Hayes) pretend they aren’t in on Halloween, to avoid trick-or-treaters. Kevin James’ daughters Sienna and Shea guest star as costumed candy-seekers. 8 p.m. CBS

Supergirl Kara and Alex (Melissa Benoist, Chyler Leigh) discover an alien…