Soap opera funeral in 1997 (32.1 million viewers) which were transmitted on both BBC One and ITV. An early television serial was "The Grove Family" on the BBC, which produced 148 episodes from 1954 to 1957. The programme was broadcast live and only a handful of recordings were retained in the archives. The UK's first twice-weekly serial was ITV's "Emergency - Ward 10", running from 1957 until 1967. In the 1960s "Coronation Street" revolutionised UK television and quickly became a British institution. On 17 September 2010, it became the world's longest-running television soap opera and was listed in "Guinness World Records". The
Soap opera story was completely resolved by the end of the episode, and there were no end-of-episode cliffhangers. After the first couple of seasons, all three shows changed their story format to that of a pure soap opera, with interwoven ongoing narratives that ran over several episodes. "Dynasty" featured this format throughout its run. The soap opera's distinctive open plot structure and complex continuity was increasingly incorporated into American primetime television programs of the period. The first significant drama series to do this was "Hill Street Blues". This series, produced by Steven Bochco, featured many elements borrowed from soap operas, such as