Bonanza song, the Livingston-Evans lyrics were revised by Lorne Greene with a more familial emphasis, "on this land we put our brand, Cartwright is the name, fortune smiled the day we filed the Ponderosa claim" ("Bonanza", Bear Family Box set, Disc #2). In 1968, a slightly revamped horn and percussion-heavy arrangement of the original score introduced the series- which was used until 1970. A new theme song, called "The Big Bonanza" was written in 1970 by episode scorer David Rose, and was used from 1970–1972. Action-shot pictorials of the cast replaced the galloping trio. Finally, a faster rendition of the original
Bonanza extreme pressure from other gang members. Coffee ends up showing the town that youth and a fast gun don't replace experience. Guy Williams was slated in 1964, the year that "Bonanza" hit #1 in the ratings, to replace Pernell Roberts upon Roberts' departure, enabling the series to preserve the four-Cartwright format for the run of the series. His character, Ben's nephew Will Cartwright, was introduced and was the lead character in five episodes, receiving "Starring" billing after the four original rotating Cartwrights during his second appearance going forward, but Roberts changed his mind later and decided to stay for one