The New Scooby-Doo Movies - Season 1 - Eps 16: The Loch Ness Mess
After seeing the sights in historical Boston, the gang is off to pay a surprise visit to Shaggy's Great Uncle Nathaniel. On the way they stumble upon The Harlem Globetrotters, who are picnicing and trying to rest up after a string of games they played around Boston. Back on the road to Uncle Nat's, Shaggy takes control of The Mystery Machine, and they begin to encounter ghosts resembling Paul Revere and soldiers of war in the road along the way. When the gangs get to Uncle Nat's, he reveals that the ghosts have scared everyone away -- and they're doing they're best to try to scare him away too. Soon the kids, Globetrotters and Uncle Nat begin running into ghosts all over the house. The following morning, everyone is on their way to a local cove when Uncle Nat tells them to keep their eyes peeled for a sea serpent that's been spotted in the lake -- subsequently Shaggy, Scooby, Meadowlark, and Curly encounter the the monster while scuba-diving. Fred and Velma come to the conclusion
About The New Scooby-Doo Movies

Title: The New Scooby-Doo Movies
First Air Date: 1972-09-09
Last Air Date: 1973-10-27
Status: Ended
Rating: 7.7/10 (from 252 votes)
Language: EN
Seasons: 2
Total Episodes: 24
Network: CBS
Genres: Animation, Mystery, Comedy, Kids, Family
Production Companies: Hanna-Barbera Productions
Synopsis
Aside from doubling the length of each episode, The New Scooby-Doo Movies differed from its predecessor in the addition of a rotating special guest star slot; each episode featured real-life celebrities or well known fictional characters joining the Mystery, Inc. gang in solving the mystery of the week. Some episodes, in particular the episodes guest-starring the characters from The Addams Family, Batman, and Jeannie, deviated from the established Scooby-Doo format of presenting criminals masquerading as supernatural beings by introducing real ghosts, witches, monsters, and other such characters into the plots.
Cast

Don Messick
Scooby-Doo (voice)

Casey Kasem
Shaggy (voice)

Frank Welker
Fred Jones (voice)

Nicole Jaffe
Velma (voice)

Heather North
Daphne (voice)