Professor Balthazar Duga profesora Balthazara (1967–1977) Online
In the annual city festival there is a prize contest for best achievement. Professor Balthazar competes with a machine that produce a beautiful rainbow. The professor modifies the machine slightly in order for the machine to produce rainbow colored cloth for the unhappy tailor who only cares for making doll's clothes.
| Episode credited cast: | |||
 | Zlatko Crnkovic | - | Narrator (voice) |
| Erik Schumann | - | Narrator (voice) |