Tuesday's TV Highlights: 'Pretty Little Liars' on ABC Family

Los Angeles TimesTuesday's TV Highlights: 'Pretty Little Liars' on ABC FamilyLos Angeles TimesAmerica's Got Talent Former series regular Piers Morgan returns to the judging panel, and he can send one act straight to the live shows at New York's Radio City Music Hall. Nick Cannon hosts, with judges Mel B, Heidi Klum, Howie Mandel and Howard ...