Actor Tim Conway’s unassuming frame and easygoing Midwestern demeanor served as the perfect baffle for his formidable comedic talents. As a comic actor, he displayed a knack for playing easily confused and clumsy characters, like the naïve Ensign Parker on “McHale’s Navy” (ABC, 1962-1966). But Conway’s true gifts were in physical comedy and improvisation, which were put to excellent use on “The Carol Burnett Show” (CBS, 1967-1978). His peerless timing and pantomime skills easily reduced audiences – and often his castmates – into helpless laughter with little or no dialogue. Conway’s work with