From 1945 to 1947, Horton hosted radio's Kraft Music Hall. An early television appearance came in the play Sham, shown on The Chevrolet Tele-Theatre on 13 December 1948. During the 1950s, Horton worked primarily in television. One of his best-remembered appearances is in an episode of I Love Lucy, broadcast in 1952, in which he is cast against type as a frisky, amorous suitor. In 1960, he guest-starred on The Real McCoys as J. Luther Medwick, grandfather of the boyfriend of series character Hassie McCoy (Lydia Reed). In the story, Medwick clashes with the equally outspoken Grandpa Amos McCoy (played by Walter Brennan).