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| Image Alt: | Cast of Bonanza in 1959 |
| Starring: | |
| Num Episodes: | 34 |
| Network: | NBC |
| Episode List: | List of Bonanza episodes |
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.
Bonanza is set around the Ponderosa Ranch near Virginia City, Nevada and chronicles the weekly adventures of the Cartwright family, consisting of Ben Cartwright and his three sons (each by a different wife), Adam, Eric ("Hoss"), and Joseph ("Little Joe"). A regular character is their ranch cook, Hop Sing.
See also: List of Bonanza characters.
On location filming took place at the following:
The episode "Showdown at Tahoe" used the M. S. Dixie II, an operating tour vessel on Lake Tahoe.
See also: List of Bonanza episodes.
Season nine aired on Sundays from 9:00pm10:00pm on NBC.
After three straight seasons in the number one spot, it slipped to #6 in the Nielsen ratings.