First broadcast 25th September 1975.<br /><br />The three flatmates agree to a system whereby if one of them wants to bring home a partner they will give notice so that the others can arrange to be out.<br /><br />Richard O'Sullivan - Robin<br />Paula Wilcox - Chrissy<br />Sally Thomsett - Jo<br />Yootha Joyce - Mildred Roper<br />Brian Murphy - George Roper<br />Doug Fisher - Larry<br />Wendy Allnutt - Susan<br />Veronica Doran - Myra<br />Mark Cooper - Desmond
