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 convalescence because the first time that Blocker swung up into the saddle on his return, the horse collapsed under his weight and the cast and crew collapsed in fits of laughter. The role of "Little Joe" was given to Michael Landon, who had earlier played the title role in "I Was a Teenage Werewolf". He portrayed the youngest Cartwright son, whose mother (Felicia in the pilot, and later changed to Marie) was of French Creole descent. Landon began to develop his skills in writing and directing "Bonanza" episodes, starting with "The Gamble." Most of the episodes Landon wrote and directed