Drama Series PERRY MASON Debuts June 21 Drama series PERRY MASON, starring Emmy® winner Matthew Rhys, debuts SUNDAY, JUNE 21 at 9:00 p.m. ET/PT, exclusively on HBO 1931, Los Angeles. While the rest of the country struggles through the Great Depression, this city is booming! Oil! Olympic Games! Talking Pictures! Evangelical Fervor! And a child kidnapping gone very, very wrong. Based on characters …