Doctors, The

From Wikipedia:

The Doctors is an American television soap opera which aired on NBC Daytime from April 1, 1963, to December 31, 1982. There were 5280 episodes produced, with the 5000th episode airing in November 1981. The series was set in Hope Memorial Hospital in the fictional "Madison," located somewhere in New England.

The Doctors debuted as an anthology series rather than a conventional soap opera, a very ambitious concept for that time. Stories were originally self-contained within one episode and featured various medical emergencies.

Because of the obvious burdens and expense of casting for separate stories each day and due to ratings being lower than expected, on July 22, 1963, stories were expanded to weekly arcs with a new plot introduced every Monday and concluding that week on Friday. This, however, was only marginally successful than the daily anthology format had been.

Beginning March 2, 1964, The Doctors ceased its experimental anthology format and became a traditional continuing serial, like all the other daytime dramas on air then. For most of the series, storylines revolved around Hope Memorial Hospital and its patriarchal Chief of Staff Dr. Matthew "Matt" Powers (played by James Pritchett), who started on the program on July 9, 1963, although Pritchett originally appeared on the series during its weekly anthology period, in another role.