Bonanza is a classic Western series that many viewers still remember from their childhoods or from weekend reruns. Understanding when this influential show aired helps fans place it in the context of television history.
Whether you are researching network scheduling, comparing eras of Western programming, or curious about your own viewing window, the timeline of Bonanza on TV is clear and well documented.
| Season | First Aired | Last Aired | Network |
|---|---|---|---|
| Season 1 | September 12, 1959 | June 4, 1960 | NBC |
| Season 4 | September 22, 1962 | May 18, 1963 | NBC |
| Season 7 | September 25, 1965 | May 7, 1966 | NBC |
| Season 10 | September 29, 1968 | April 4, 1997 | NBC |
| Overall Run | September 12, 1959 | January 16, 1973 | NBC |
Season By Season Airing Details
First Seasons On NBC
Bonanza premiered on NBC in September 1959, quickly becoming a Sunday night staple for American families. The network scheduled the show with care to build a consistent audience around Western themes.
Mid Run Consistency
Throughout the 1960s, Bonanza maintained strong viewership and remained on NBC with regular fall premieres and spring finales. The show benefited from network stability and a loyal advertiser base during this period.
Later Years And Final Season
By the early 1970s, television tastes were shifting, yet Bonanza continued to draw respectable numbers. The series concluded its original run in January 1973 after more than a decade on the air.
Historical Context Of The 1959 1973 Period
The years when Bonanza was on TV overlap with major cultural and technological shifts in broadcasting. Color television became standard, and scriptwriting for long-form Western drama evolved significantly during this era.
As one of the longest-running Westerns of its time, Bonanza influenced later series and helped define the prime-time Western for an entire generation of viewers and creators.
Regional Syndication And Repeats
After its network run ended, Bonanza found new life in syndication, appearing on local stations and cable packages. Reruns allowed families in different time zones to experience the Cartwright family adventures well beyond 1973.
These repeats expanded the show reach and sustained its popularity, making the series a staple of weekend television for many years.
Comparison With Other Classic Westerns
When viewers compare long-running Western series, the timeline of Bonanza stands out for its length and consistent network support.
| Show | Years On Air | Network | Total Seasons |
|---|---|---|---|
| Bonanza | 1959–1973 | NBC | 14 |
| The Rifleman | 1958–1963 | ABC | 5 |
| Gunsmoke | 1955–1975 | CBS | 20 |
| Rawhide | 1959–1966 | CBS | 8 |
FAQ
Reader questions
When did Bonanza first appear on television?
Bonanza first appeared on NBC on September 12, 1959, marking the start of its fourteen-season run.
Which network originally aired Bonanza and for how long?
NBC originally aired Bonanza from 1959 through 1973, providing consistent network support for the series.
Did Bonanza continue to air in reruns after its original run ended?
Yes, after the final original episode in January 1973, Bonanza entered syndication and was widely shown on local stations and cable networks.
How does the length of Bonanza compare to other Western series of the same era?
With 14 seasons and over 400 episodes, Bonanza ranks among the longest-running Western dramas, outlasting several contemporaries while being surpassed only by shows like Gunsmoke.