(Strip Number 884, Original Publication Date, 4 July 1985)
Panel 1: Upon finding the kids watching television, Elly asks them how they can waste their lives that way on a day like today.
Panel 2: She then tells them to find something to do outside.
Panel 3: When that 'something' is Mike wearing a cardboard box as if he's on television while Lawrence and Lizzie watch him, Elly gets gobsmacked.
Summary: Well, she told him to do something. It's not his fault that television has spent more time raising him than she does.