It seems that everybody has something planned for Friday night - except Ernie (
Barry Livingston). But since this will be the first time Rob (
Don Grady) and Katie (
Tina Cole) are away from the triplets, they are reluctant to leave Ernie alone with the babies, so they hire a sitter recommended by the family doctor. However, the sitter (
Rose Marie) seems to be more interested in watching television than watching the babies. After repeated calls from worried family members, she takes the phone off the hook, but now the constant busy signal causes more anxiety, so the family members all rush home, only to find that the sitter has matters well in hand.
—S Sather