"Difícil de Creer" (also known by its acronym, DDC) is a weekly program dedicated to popular science, public outreach, and unusual topics. Throughout the broadcast, the motto "hard to believe" is invariably applied. Its content ranges from biomedical sciences, technology, and astrophysics to psychology and little-known historical facts. However, it also touches upon other subjects, such as legends, myths, and various other topics that have not been scientifically verified.