WORCESTER – There will be three key words when “The Price Is Right Live” comes to The Hanover Theatre and Conservatory for the Performing Arts on Sept. 26:. Todd Newton, who will be the host of “The Price Is Right Live” at The Hanover Theatre, said announcer James Gruessing “has it down pat.” As they travel with the show Newton can hear Gruessing warming up in his dressing room each evening before taking the stage. When the “come on down!” sounds particularly resonant, “I know it’s gonna be a good night,” Newton said.