Andy returns to Mayberry to run for...

Andy returns to Mayberry to run for sheriff, only to discover his former deputy, Barney Fife, also is running for the office in “Return to Mayberry” (Monday at 7:05 a.m. on TBS), the 1986 “The Andy Griffith Show” NBC reunion movie starring Griffith, Don Knotts and Ron Howard.

Lucy and Viv (Vivian Vance) reminisce about their fun times together on “The Lucy Show” (Monday at 11 p.m on Nickelodeon).

David Birney, Barbara Perkins and William Shatner star in the repeat of the 1977 miniseries “Testimony of Two Men” (Tuesday and Wednesday at 5 p.m. on TNT), based on Taylor Caldwell’s novel about a committed doctor who leads a one-man crusade to bring modern medicine to a local community.

Phil Harris guests on “The Lucy Show” (Tuesday at 11 p.m on Nickelodeon) in an episode in which Lucy downs a drink so quickly at a lounge she begins to harmonize with the piano player’s music.

Claude Rains guests on “Alfred Hitchcock Presents” (Wednesday at 10:30 p.m. on Nickelodeon) in an episode about a gambler who discovers that prayer helps him win at horse races.

Ken Berry plays a new client who Lucy tries to help on “The Lucy Show” (Friday at 11 p.m. on Nickelodeon).

Veteran actress and director Geraldine Fitzgerald stars in an “Alfred Hitchcock Presents” (Saturday at midnight on Nickelodeon) about a man and his ailing wife’s nurse who plot to kill the wife so they can marry.