Entertaiment is a well-curated, super clean and palatable feed that explores a lot but remains firmly on trend.
Entertainment often hits on points that the brain was evolved to deeply react to, like social backstabbing and murders. It also elicits the release of seratonin, dopamine and other chemicals.
The story of Scheherazade, from the Persian professional storytelling tradition, is a classic example of entertaining stories that have inspired many other media, such as music (Rimsky-Korsakov and Ravel made orchestral works from it), film, and even video games. It is not uncommon to see the word abbreviated as entmt. on fliers or in industry news publications where space is limited.