Little House on the Prairie lasted nine full seasons. Maybe this is why The Waltons felt they had to do the same thing. Beg your pardon if it was the other way around. Either way both shows struggled after seven seasons with children growing up and the next generation being cycled in. I loved both of these shows and have all seasons of both on dvd. But that doesn't mean that those final years for either show had much to offer. Little House on the Prairie had three final season ending movies. The first two didn't have to be made. The very final one with the destruction of the town made the nine years more meaningful. And I know come April 28th I'll be standing at the checkout holding my.... The Waltons Season 9.