Wealthy couple Jonathan and Jennifer Hart, a self-made millionaire and his journalist wife, moonlight as amateur detectives.
Not streaming on a subscription service in the US right now.
Starring Robert Wagner, Stefanie Powers, Lionel Stander, Lee Wilkof, Mimi Maynard, Wynn Irwin, Lyman Ward, Richard B. Shull, Matthew Faison, Henry Darrow