The programmeme revolved around the events of Robin Tripp, a young man studying to be a chef, and his two room mates Chrissy and Jo. They would often get into amazingly tricky situations, some of which involved their landlords George and Mildred Roper, and Robin's friend Larry Simmonds.
It originally ran from 1973 to 1976, and was later remade in the US as Three's Company. It also gave rise to two other series: Robin's Nest and George & Mildred.