The series premiered in
The character of Marvin is (still
after three decades) a young baby boy with all
the good and less good sides that can be expected;
he can be adorable or throw tantrums, and he can
be behaving considerately or self-centered. His
parents, Jenny and Jeff Miller have their hands
full and they always look tired.
Although Marvin has not changed a bit since his
first appearance, the series as such has
developed; for instance, many new supporting
characters have emerged such as the dog Bitsy,
the grandparents Bea and Roy, the new neighbours
the Purfects, and several others.