Yes. I watched it when I was in grade school. kinda liked it.
An animated adventure show for kids in the Sixties. The title character was a 12 year old blond blue eyed son of scientist guy, or something. They had adventures. Usually involving science and tech and high tech of the time.
They even had a nod to diversity (in a dumb Sixties kinda way). Johnny's best buddy was Hajeed a brown skinned South Asian boy his own age who shared in the adventures. Trouble is Hajeed wore a Hindu type turban...but his name was "Hajeed" which is an honorific given only to individuals who have taken the Hajj (the pilgrimage to Mecca)...so the American creators kinda botched it by making him belong to two mutually hostile religions (Hinduism and Islam)at the same time. But its the thought that counts.