It's a Living S01E04 - Fallen Idol

Vicky's father Emmett Allen arrives in Los Angeles for a visit, causing great joy for Vicky, in spite of Emmett not liking his daughter's current chosen profession and the revealing uniform she wears at the restaurant at the time of the father/daughter reunion, but when Vicky shows up at her father's camper to give him a going away present, she finds Nancy and her father in a semi-clad state, causing both father and daughter not to speak to each other.