Real-life marrieds and Dancing stars Lisa Rinna and Harry Hamlin have extended their Broadway run as Chicago's Roxie and Billy Flynn, and now will appear through Aug. 5.... Randy Quaid will make his Broadway musical-comedy debut playing Col. John Falstaff in Lone Star Love, a Wild West variation on Shakespeare's The Merry Wives of Windsor. The musical will open Dec. 3, with previews beginning Nov. 1