The Simpsons (1989): Season 17, Episode 1

17 - 1: Bonfire of the Manatees

Marge is outraged when she discovers Homer allowed Fat Tony to shoot a "gentleman's" film in their house to make restitution for his football gambling debt. So she takes off and leaves Homer with the kids. While on her journey of self-discovery, Marge befriends Caleb Thorn, an attractive marine biologist who is on a quest to save not only the endangered manatee, but Marge from a husband who doesn't seem to appreciate her. Blackboard 'Does anyone still do this anymore?'.