Friday, June 15, 2018 ABC 8:00 p.m. “Quantico” 9:00 p.m. “Primetime: What Would You Do?” 10:00 p.m. “20/20” CBS 8:00 p.m. “Undercover Boss: Celebrity Edition” 9:00 p.m. “Hawaii Five-O” (R) 10:00 p.m. “Blue Bloods” ((R) NBC 8:00 p.m. “American Ninja Warrior” (R, two hours) 10:00 p.m. “Dateline” Fox 8:00 p.m. “The Four: Battle for Stardom” […]