First broadcast 30th January 1974.<br /><br />The flatmates throw a party for the Ropers' wedding anniversary and Robin invites a German student Franz to come along.<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 />Dennis Waterman - Franz Wasserman
