Seven
Ready or Not
There is no record of any character named Gobble on any children's show. The Gobbledok, however, was a fictional advertising character in Australia for Smith's chips.
The central character is a horse - named the Phantom.
She was in the movie "The Devil's Rejects" as a character named Fanny.
The children's book with a main character named Milo is "The Phantom Tollbooth" by Norton Juster. It follows Milo on an adventure through a magical realm filled with puns and wordplay.
While not a children's television show, but a classic children's movie, the Disney film Pinocchio contains a character by the name of Jimny Cricket, who acts as the protagonist's moral compass.
If you mean Dimitri Mendeleev. Then it's the element: mendelevium
New Zoo Revue
It was Play Bus I Think
One example of a children's book with a main character named Samuel, not Sam, is "Samuel's Baby" by Sarah Sheppard. This book tells the story of a young boy named Samuel who learns about responsibility and caring for others when a baby unexpectedly arrives in his family.
Spirit: Stallion of the Cimarron