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: The Next Generation Bonanza: The Next Generation Bonanza: The Next Generation is a 1988 American made-for-television western film and a sequel to the 1959–1973 television series "Bonanza" starring John Ireland, Robert Fuller, Barbara Anderson, Michael Landon Jr., Brian A. Smith and John Amos. None of the characters from the original series appears since the entire cast, with the exception of Pernell Roberts and Michael Landon, had died. Lorne Greene had signed to reprise his role as patriarch Ben, but died shortly before production began. He was replaced by veteran actor John Ireland, who played Ben's brother Aaron. The movie features Michael Landon Jr.