A television series based on the Little House On The Prairie aired on the NBC network from 1974 to 1983. The show was a loose adaptation of the Little House on the Prairie books, with the namesake book being represented in the premiere movie only, and the regular series primarily following characters and locations from the follow up book, On the Banks of Plum Creek (the continuity of the television series greatly departed from this book as well). Some storylines were borrowed from the later books as well, but were portrayed as having taken place in the 'Plum Creek' setting. Michael Landon starred as Charles Ingalls, Karen Grassle played Caroline Ingalls, Melissa Gilbert played Laura Ingalls, Melissa Sue Anderson played Mary Ingalls, and the twins Lindsay and Sidney Greenbush (credited as Lindsay Sidney Greenbush) played Carrie Ingalls. Some characters were added in the show, such as Albert, played by Matthew Laborteaux, an orphan the family adopted. Although it deviated from the original books in many respects, the television series, which was set in Walnut Grove, Minnesota, was one of a few long-running successful dramatic family shows.

Source: Wikipedia.org