In April 1981, Si Unyil appeared for the first time on the television screen. Within short time, the show that was broadcasted by the only Indonesian television company at that time and state-owned TVRI, became a close friend to Indonesian children. Although it was meant to entertain children, the story of Si Unyil contained hidden messages of patriotism, nationalism, health, the environment, the armed forces, the family planning, art and culture. There were, of course, children fantasy, such as folk stories, fables and fairy tales.
All characters in the Si Unyil are hand puppets with the physical appearances of ordinary Indonesian faces. Traditional touch is strongly apparent in the show, from the suit of every characters to the stories that dealing with everyday life. Characters are divided into "good" and "bad" ones, where a group of three young children (Unyil and his two friends) as good, while three other children as bad boys. Conflicts often arouse between the two groups with the ending always with a message to become a good children.
To enhance the story and to be more entertaining, two antagonistic characters were introduced. They are the short-tempered thick mustached Pak Raden and the lazy Pak Ogah. Although the two antagonistic characters were supposed to be unsympathetic ones, they were more popular than other characters. Pak Raden represents a hard working man with a rugged face and strong Javanese background who always wears a traditional Javanese suit. The popularity of Pak Raden came when he became funny and was wrong all the time despite of that he insisted strongly at the beginning that he was right. Pak Ogah, on the other hand, represents a lazy person who does not want to work but only to ask money when people asking for his help. He usually accompanied by his sidekick Ableh.