Bonanza Bonanza Bonanza is an NBC television western series that ran from 1959 to 1973. Lasting 14 seasons and 431 episodes, "Bonanza" is NBC's longest-running western, and ranks overall as the second-longest-running western series on U.S. network television (behind CBS's "Gunsmoke"), and within the top 10 longest-running, live-action American series. The show continues to air in syndication. The show is set in the 1860s and it centers on the wealthy Cartwright family that live in the vicinity of Virginia City, Nevada, bordering Lake Tahoe. The series initially starred Lorne Greene, Pernell Roberts, Dan Blocker, and Michael Landon and later featured (at
Bonanza than the original. "Bonanza" creator David Dortort approved PAX TV (now Ion TV)'s decision to hire Beth Sullivan, formerly of "Dr. Quinn, Medicine Woman", which some believe gave the series more depth as well as a softer edge. The Hop Sing character is depicted not only as a cook but also a family counselor and herbal healer. The series takes place in Nevada Territory in 1849, which is actually an anachronism. The Nevada Territory did not split from the Utah Territory until 1861, meaning that until at least the 5th season (the episode "Enter Thomas Bowers" establishes that year as