It's not like it was something new...
All through the 60's shows based in rural settings were the top drawing shows:Beverly Hillbillies, Andy Griffith, Gomer Pyle, that was the top drawing market. CBS tried to move away from their hick image, mainly because while they were popular, the demographic they were aimed at didn't spend much money. They lost a lot of viewers. I think the Waltons was an attempt to get that market back in a more respectable manner than hick comedies. Anyway, it had a legitimate premise as an alternative to all the urban comedies that weren't as popular as the rural comedies. And as a look back at a simpler time in American history and the values that this country was built upon.
IMO, the show sucked though, by far one of the most depressing and boring shows I have ever seen, and it got even more depressing when Johnboy, the whole premise of the show, left. I remember actually contemplating suicide as a child when I found out every one wanted to watch Christmas on Walton's mountain for the 1 billionth time.
I agree with Ice, the Walton's needed more teen pregnancy and racism.
And Beno does look like John boy.