Diane Keaton

Friday's TV Highlights: 'Purple Rain' on VH1

Friday's TV Highlights: 'Purple Rain' on VH1

SERIES

All In With Cam Newton A girl who dreams of being the first woman to play in the NFL meets quarterback Cam Newton. 8 p.m. Nickelodeon

What Would You Do? The hidden camera series that stages troubling scenes that cause dilemmas for unsuspecting witnesses returns for a new season with host John Quinones. 9 p.m. ABC

Dateline: On Assignment Former late night host David Letterman is interviewed in the season finale of this news magazine series, which includes a segment on the distrust between police and poor urban communities in Los Angeles. 10 p.m....

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