Back for a fourth season, multiple Emmy? winner Dick Van Dyke stars in one television?s most successful contemporary whodunnits.

In Season Four, Dr. Sloan has an icy encounter with a cold-hearted skater, helps foil a terrorist plot, deals with the re-appearance of his estranged daughter, and enlists the help of two other famous crime-solvers P.I. Joe Mannix and attorney Ben Matlock. Airing for eight seasons, DIAGNOSIS MURDER became a worldwide hit thanks to its perfect blend of crime and mystery. Now all 26 episodes from the 4th Season are on DVD.