Bay Watch
Guinness: "At its peak of popularity, Baywatch (NBC, then syndicated, USA) became the most widely viewed TV series in the world ever, with an estimated weekly audience of more than 1.1 billion in 142 countries in 1996. Covering every continent bar Antarctica, the show has since been seen in 148 countries and translated into 44 languages". In 2021 the Guinness record holder for TV series is "Game of Thrones".