Cerberus (), or Kerberos, (Greek form: Κέρβερος, ) in Greek and Roman mythology, is a multi-headed hound (usually three-headed) which guards the gates of the Underworld, to prevent those who have crossed the river Styx from ever escaping. Cerberus featured in many works of ancient Greek and Roman literature and in works of both ancient and modern art and architecture, although, the depiction and background surrounding Cerberus often differed across various works by different authors of the era. The most notable difference is the number of its heads: Most sources describe or depict three...

La Linea ("The Line") is an Italian animated series created by the Italian cartoonist Osvaldo Cavandoli. The series consists of 90 episodes which are about 2–3 minutes long each which were produced originally broadcast in the Italian channel RAI between 1971 - 1986. Over the years the series aired in more than 40 countries around the world. All episodes of the series are available today on DVD version. Due to its short duration (usually 2 minutes 30 seconds), it has often been used in many networks as an interstitial program. The tune played in the background of the series was created b...