(Friday, September 25, 1970, 8:30 p.m. EDT) — The Partridge Family, an American sitcom television series about a widowed mother and her five children who embark on a music career, debuted tonight on ABC. Continue reading ‘The Partridge Family’ sitcom TV series premieres on ABC 50 years ago this hour #OnThisDay #OTD (Sep 25 1970)