Writer/creator Hetty Heyting held a survey at several schools to decide what kind of program she should produce for children. She presented the young participants with lists of titles and characters from which to choose their favorite, and also gave them the opportunity to propose a character which they would enjoy watching. The majority chose the title 'De Familie Knots' (which was also Heyting's favorite) and a lot of children wanted to see a school teacher in his spare time on the show, prompting Heyting to create the character of Arend Vogel.
Hetty Heyting painted all the art that can be seen in Tante Til's boudoir herself, often just a couple of days before the filming of each episode. Because props had a tendency to disappear from the set overnight, she used to take all of her art back home every day at the end of filming.
Hetty Heyting bought the dress she wore as Tante Til years later at an auction. According to her, it had been worn just once prior to De Familie Knots, in the early sixties by Sylvia de Leur for an undisclosed television series.
Each episode was filmed in two days. One day for the story and the second for the music video (usually shot on location). Because each of the three actors had to play multiple parts, they were on a strict time schedule the first day of shooting and there was hardly ever time to do a second take of each scene.