Searxng/Watson CBS TV show tv TV CBS cancels *Watson* after two seasons; the Sherlock Holmes-inspired medical drama starring Morris Chestnut ends May 3. April 27, 2026 AceShowbiz - Watson has been canceled by CBS after running for two seasons, with its upcoming season two finale serving as the series finale. The final episode is scheduled to air on Sunday, May 3, at 10/9c, marking the end of the network's Sherlock Holmes-inspired medical drama. The drama starred Morris Chestnut as John Watson, a physician struggling with the loss of his close friend, Holmes.