Jeux Sans Frontières returned to British TV screens in 1991, as S4C dipped their toe in Knockout territory, entering a selection of teams from Welsh towns. These programmes were limited to the Wales and West region of the United Kingdom and were broadcast in Welsh.

The Welsh channel's involvement came about as a result of a chance encounter at a television marketing event at the Palais des Festival, Cannes in the south of France. This was at a time when Welsh broadcaster S4C was angling to become involved in international co-productions and were courting programme makers from Brazil regarding the possibility of co-producing tele-novellas together. While at the Brazilian stand at the event, S4C's Commissioner for Light Entertainment, Ifan Roberts, found himself immersed in a conversation about 'the old It's A Knockout', which he discovered was still being made and broadcast in mainland Europe, but lacked a British broadcast agreement. It set him thinking.

Months later, S4C representatives turned up at a meeting in Venice and tried to persuade the European Broadcasting Union (EBU), which held the rights to the series, to allow the Welsh channel to come on board. The committee agreed and S4C were invited to the first planning meeting for the 1991 series, which took place in December 1990 in Geneva. The meeting proved fascinating and S4C began to get an idea of the immense complexity of the project, which totally caught their imagination. S4C executive Ann Beynon later recalled: "To record a series of eleven programmes in five different European countries with six teams in each programme, five of which had to be transported from their respective countries for each programme seemed to need a mathematical genius to sort it out. It may have been like playing three-dimensional chess but it worked so well... S4C is by now involved in a multiplicity of co-productions with a host of partners from Japan and the USA, to Russia and Germany. They are all challenging in their complexity and infuriating and exciting in terms of creativity. Jeux Sans Frontières is probably the most challenging, infuriating and exciting of them all. It is also a series that 50 million people throughout Europe want to watch because it is good entertainment, which is what it's all about at the end of the day."

In the last year of their three year participation, the underdogs from the tiny republic of San Marino achieved a creditable three International Heat victories. San Marino accounts for little more than 24 square miles of land and has a population estimated at around 30,000 people.

JSFnetGB Series Guide pages researched by
Neil Storer and Alan Hayes
with Ischa Bijl, Julien Dessy, Sébastien Dias, David Hamilton, Denis Kirsanov, Paul Leaver, Philippe Minet,
Christos Moustakas, David Laich Ruiz, Marko Voštan and JSFnet Websites