Willie wants to teach Mark a lesson in brotherly love when Willie's girlfriend decides she likes her tutor Mark better.
The Hogan Family S04E20 (“Private Lessons”) first aired on April 23, 1989.
In the US, The Hogan Family season 4 — including this episode — is available on Amazon, AppleTV, and Fandango at Home.
Guest stars include Andre Gower (Steve Traeger) and Tammy Lauren (Lisa).