Bonanza, season 9

The ninth season of the American Western television series Bonanza premiered on NBC on September 17, 1967, with the final episode airing July 28, 1968. The series was developed and produced by David Dortort. Season nine starred Lorne Greene, Dan Blocker, and Michael Landon. The season consisted of 34 episodes of a series total 431 hour-long episodes, the entirety of which was produced in colour. Season nine was aired on Sundays at 9:00 p.m. After three straight seasons at number one, it slipped to #6 in the Nielsen ratings.