Bonanza is NBC's longest-running Western. Bonanza, an American Western television series, ran on NBC from September 12, 1959, to January 16, 1973 lasting 14 seasons and 431 episodes.
The show, set in the 1860's centers on the wealthy Cartwright family who live in the Virginia City vicinity, Nevada, bordering Lake Tahoe. The series stars Lorne Greene, Pernell Roberts, Dan Blocker and Michael Landon.

Ponderosa

Genre: Western
Created by (Show runner): David Dortort

Starring
Lorne Greene
Pernell Roberts
Dan Blocker
Michael Landon
Guy Williams
Victor Sen Yung
David Canary
Mitch Vogel
Ray Teal
Bing Russell
Tim Matheson
and Lou Frizzell

Theme music composer
Ray Evans
Jay Livingston

Opening theme: "Bonanza"
Ending theme: "Bonanza"

Composers
David Rose
Walter Scharf
Harry Sukman
Fred Steiner
William Lava

Country of origin United States
Original language English
No. of seasons 14
No. of episodes 431 (list of episodes)

Executive producers
David Dortort
Mark Roberts

Producers
Fred Hamilton
Robert Blees
Richard Collins

Running time: 49-50 minutes
Production company: NBC