Where did the word Laowang next door first appear?

The term "Lao Wang next door" comes from the cartoon "Big-headed Son and Little-headed Dad". The little-headed son always asks Uncle Wang next door to come over for dinner.

Laowang next door is one of the words that most Chinese people around the world know. This word has many identities. It can be the object of the wife's extramarital affair, the father of the child, the object of venting one's anger, or the protagonist of a joke.

The head of Big Tou’s son is the same size as that of Uncle Wang next door, but different from that of Little Tou’s father. Some netizens believe that Uncle Wang next door is Big Tou’s son’s biological father.

Extended information:

The allusion of Lao Wang next door: A couple gave birth to a child, named Xiaobai. Xiaobai gradually grew up and began to learn to speak. In order to make the elderly at home happy, I first taught him to call "Grandpa". Xiaobai called "Grandpa, Grandpa", but two days later, Grandpa died.

The family taught Xiaobai to call "grandma". Xiaobai soon learned to call "grandma, grandma," but two days later, grandma also died. Next it was Xiaobai's turn to call "Dad", and Xiaobai's father was very nervous. . He learned to call "Dad" right away. For the next two days, Dad stayed up all night and had trouble sleeping.

As a result, two days later, Lao Wang next door died. Now the guy next door, Lao Wang, has become a symbol of awesomeness. Now Lao Wang on the Internet is just like Xiao Ming in elementary school mathematics textbooks. He can't do anything without him.