Perfect Strangers - Season 7 - Eps 6: Fright Night
When Balki finds out that there is a ghost in their house, Larry refuses to believe it. Jennifer and Mary Anne are convinced when Balki shows them a book about it. So they go up to Balki's room (where the ghost lives) and wait for him to come out. Even when miraculous things start to happen, Larry still doesn't believe it until he's attacked.
About Perfect Strangers

Title: Perfect Strangers
First Air Date: 1986-03-25
Last Air Date: 1993-08-06
Status: Ended
Rating: 6.673/10 (from 98 votes)
Language: EN
Seasons: 9
Total Episodes: 150
Network: ABC
Genres: Comedy
Production Companies: Unknown
Synopsis
The chronicles of the rocky coexistence of midwestern American Larry Appleton and his distant cousin from eastern Mediterranean Europe, Balki Bartokomous.
Cast

Bronson Pinchot
Balki Bartokomous

Mark Linn-Baker
Larry Appleton

Melanie Wilson
Jennifer Lyons

Rebeca Arthur
Mary Anne Spencer

Belita Moreno
Lydia Markham

Sam Anderson
Sam Gorpley