Masterpiece is a drama anthology television series produced by WGBH Boston. It premiered on Public Broadcasting Service on January 10, 1971, making it America's longest-running weekly prime time drama series. The series has presented numerous acclaimed British productions. Many of these are produced by the BBC, but the line-up has also included programs shown on the commercial ITV network and Channel 4. In 2013 TV Guide ranked it #3 in its list of The 60 Greatest Dramas of All Time.