Consumer advocate Maggie raps a vacuum cleaner that Ben broke without telling her.

The ghost of Maggie’s father oversees the Seavers’ visit to her childhood home.

While Jason and Maggie are away, the principal informs Mike that Luke’s birth father is back in town — and wants him back.

Ben crams for a college entrance exam, but gets no help from Jason.

Christmas brings anger and angst to the Seavers.

Penniless Mike schemes to give Kate a skiing trip.

Luke’s homeless friend steals a Seaver momento.

Maggie and Jason put Mike on the spot for Luke’s curfew problems.

A love triangle involves Ben, Luke and a classmate.

Tired of being bullies, Ben takes karate lessons.

Mike thinks his friend is a bad influence on Luke.

Luke’s father George visits the Seavers hoping that Luke has mellowed a little and would like to spend some time with him but Luke doesn’t. He was about to leave…

Maggie wants to fulfill a dream by climbing a mountain.

A power failure causes dissensions in the Seaver household.

Maggie is offered a plum job in Washington, D.C. The Seavers move to Washington, D.C., but share a final meal and memories in the empty house.

The Seavers move to Washington, D.C., but share a final meal and memories in the empty house.

Mike teaches at an urban high school.

Mike gets involved when he learns his prize pupil Luke is homeless.

Mike persuades Jason and Maggie to let Luke stay with them temporarily; then Jason’s wine cellar goes missing.

Jason and Maggie compete to write a newspaper column; Ben hates his glasses.

Mike gears up for his big day as a TV soap opera star just as Luke gears up to move out of the Seavers’.

Luke is afraid to visit the doctor, so Jason accompanies him — but it’s Jason who turns out to need surgery.

Carol accompanies Maggie to a resort, which turns out to be hosting a singles convention; meanwhile, the all-male weekend planned at home is ruined when Chrissy is set home with…