In the MOVING IN episode of Laverne & Shirley, Laverne is wearing a yellow sweater with her signature L when she first walked into her Boyfriends apartment, then later changes to her nightgown, but when someone knocks on the door, Laverne quickly changes back into her clothes, the L on her sweater disappears (assuming its inside out) when she answers the door. When Len leaves, Laverne takes off her sweater, then she puts her sweater back on this time the L reappears, then she takes her sweater off again when she and her boyfriend were talking about Moving in, when she puts it back on her L disappears again, then Laverne puts her sweater back on for the final time, the L reappears for the final time.