S6·E91 Episode 413 (Tue 13th Dec 1977)

Dolly continues to fend off Richard's attempts for a reconciliation. He comes up against some stern opposition though in the form of Annie. When he tells her that he wants to marry Dolly, Annie turns on him and tells him that she knows about the baby and that he was never much of a father and that he can't own people, like he wants to own his son and Dolly. Later on that evening at the farm, Dolly drops her bombshell on Matt, telling him that she won't be staying for Christmas after all and that she has a child.