The Cavanaughs - Season 2 Episode 9 Gimme Shelter

Father Chuck, Jr. is in a bit of a bind when the homeless shelter where he was helping out is forced to closed down suddenly. He's managed to find a new home for everyone, save for one person, and asks Pop if they could stay with him temporarily. Pop reluctantly says yes, only to learn that there's two people: a Hispanic woman, Rosa, and her infant son, Bob. But when Rosa (who barely speaks any English) overstays her welcome, Pop and Kit begin to suspect that the Father's motives aren't entirely pure, and Rosa is a scam artist. They get one right -- Father Chuck, Jr. goes on to announce that he's resigning from the priesthood, so that he can marry Rosa and be the other kind of father. Although everyone takes the news hard, only Pop is so angry about it that he nearly disowns his grandson. Pop's increasing feelings towards the baby cause him to eventually have a change of heart... at the same time that Junior has his own about the marriage thing.