TV Review: Checkmate | Colonel March of Scotland Yard | I’m the Law Time for more old-time TV! Checkmate was a 1960-62 series about a detective agency of the same name based in San Francisco. Don Corey (Anthony George ) and Jed Sills (Doug McClure) out of Corey’s plush apartment, and employ Dr. Carl Hyatt… Continue reading TV Review: Checkmate | Colonel March of Scotland Yard | I’m the Law