GREY'S ANATOMY - "Let the Truth Sting" - The new interns are dazzled by the skill level of fellow intern George, while Lexie helps keep his "repeater" status a secret; Meredith half-heartedly helps Lexie with her first emergency patient; Sloan and Richard attempt a radical, new surgery to save a woman's ability to speak; and George is compelled to tell Callie of his past indiscretion with Izzie, on "Grey's Anatomy," THURSDAY, OCTOBER 11 (9:00-10:01 p.m., ET) on the ABC Television Network. (ABC/GALE ADLER) T.R. KNIGHT, KATHERINE HEIGL