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 oil boom, premiering on September 27, 2015 during the 2015-16 TV season. The telenovela, a shorter-form format of serial melodrama, shares some thematic and especially stylistic similarity to the soap opera, enough that the colloquialism "Spanish soap opera" has arisen to describe the format. The chief difference between the two is length of series; while soap operas usually have indefinite runs, telenovelas typically have a central story arc with a prescribed ending within a year or two of the show's launch, requiring more concise storytelling. Spanish-language networks, chiefly Univision and Telemundo, have found success airing telenovelas for the growing U.S.