ALF hosts "The Tonight Show", with Ed McMahon.

ALF hosts "The Tonight Show", with Ed McMahon.

In a nightmare, Willie dreams ALF is his school roommate.

The Tanners let Trevor Ochmonek stay at their house after he has a fight with his wife.

ALF is convinced gangsters are chasing the Tanners' houseguest.

ALF has an allergic reaction to a baby.

ALF and Jake suggest Brian camp out to overcome his fear of the dark.

Kate goes back to work when a strike sends Willie home.

ALF makes Brian disappear with a mail-order magic kit.

ALF is convinced that a reclusive neighbor is actually Elvis Presley.

ALF sees Jake's kleptomaniac mother arrives for a visit, and steals a broach from Kate.

ALF prepares for the baby's arrival by re-enacting scenes from "The Dick Van Dyke Show."

In a fantasy sequence, ALF's guardian angel shows him what the Tanners' lives would be like without him.

Betrayed confidences cause a falling-out between ALF and Lynn.

ALF blames his streak of bad luck on a Melmac superstition.

Lynn ends up with two dates for a dance through ALF's mishandled phone message.

Desperate for a pet of his own, ALF acquires an ant farm.

ALF imagines in black and white that he and the Tanners are silent-movie stars.

The Tanners continue to try and jog ALF's memory, and deal with the police at the same time.

ALF hides out in the back seat during Lynn's date at the drive-in.

ALF's expose earns Willie a guest spot on David Horowitz's consumer advocate show.

ALF prepares for the worst after experiencing a mild earthquake.

ALF dreams he's a famous stand-up comic.

ALF hits his head and is convinced he is an insurance salesman. The Tanners try reviewing past events to try and jog his memory.

The Tanners are invited to a Thanksgiving dinner with the Ochmonek's bizarre relatives.