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 became the Cartwright's foreman. Initially, "Bonanza" aired on Saturday evenings opposite "Dick Clark's Saturday Night Beech-Nut Show" and "John Gunther's High Road" on ABC, and "Perry Mason" on CBS. "Bonanza"s initial ratings were respectable, often coming in behind Mason but ahead of the ABC line-up. Ironically, executives considered canceling the show before its premiere because of its high cost. NBC kept it because "Bonanza" was one of the first series to be filmed and broadcast in color, including scenes of picturesque Lake Tahoe, Nevada, although most of the episodes were obviously filmed on soundstages until the seasons near the end