Comedy series featuring a grandpa with a magical shrinking cap that only his grandson knows about.
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Dad gives Grandpa's old piggy bank to Mr Mentor the Inventor.
Surprise visitors want to buy the Masons' house! Grandpa decides they must be stopped.
Opera singer Madame Vibrato tries to help everyone make the music come alive.
Grandpa helps Lenora the explorer find a blue big-beaked bonglebird.
The whole family play a game, but Great Aunt Loretta starts cheating.
Grandpa helps Cousin Alvin look after the toyshop for Mr Whoops.
Jason has chicken pox and has to miss Mr Mentor's inventing club.
Great Aunt Loretta has invited a celebrity chef to try some of her ghastly recipes.
Mr Liker Biker's nephew Eryk comes to stay but he doesn't seem to like anything.
Mr Mentor announces that he's giving up inventing.
Miss Smiley asks Horatio Heave Ho to help her run a fun school for pirates.
Mr Mentor's inventor friend Mr Greator comes to stay.
Mr Whoops is getting married, but Great Aunt Loretta is determined to interfere.