At Home With Their Greatest Hits is an album by a fictional music group that starred in a sitcom that aired until what year?
At Home with Their Greatest Hits: At Home with Their Greatest Hits is a Partridge Family album. The Partridge Family:  It ran from September 25, 1970, until March 23, 1974, on the ABC network as part of a Friday-night lineup, and had subsequent runs in syndication.
1974