Scooby-Doo, Where Are You! - Season 1 - Eps 16: A Night of Fright is No Delight
Scooby-Doo inherits a mansion after saving Colonel Beauregard Sanders from drowning some years ago. He and some other heirs will each get a fortune if they stay the night but there's a warning that the house is haunted. The warning appears justified when someone (or something) comes to frighten the heirs away.
About Scooby-Doo, Where Are You!

Title: Scooby-Doo, Where Are You!
First Air Date: 1969-09-13
Last Air Date: 1978-12-23
Status: Ended
Rating: 7.818/10 (from 719 votes)
Language: EN
Seasons: 4
Total Episodes: 41
Network: ABC CBS
Genres: Animation, Mystery, Comedy, Kids, Family
Production Companies: Hanna-Barbera Productions
Synopsis
Fred, Daphne, Velma, Shaggy, and the talking dog, Scooby-Doo, travel on the Mystery Machine van, in search of weird mysteries to solve.
Cast

Casey Kasem
Shaggy Rogers (voice)

Don Messick
Scooby-Doo (voice)

Frank Welker
Fred Jones (voice)

Heather North
Daphne Blake (voice)

Pat Stevens
Velma Dinkley (voice)