My Little Pony
In 1986, Hasbro made a cartoon for television called My Little Pony n' Friends to sell My Little Ponies and other toys.  In it, the My Little Ponies live in a place called Dream Valley and go on adventures with a human farmgirl named Megan.  They have many different kinds of creatures for friends and enemies.  The first half of each episode was a My Little Pony story with a song.  The second half of each episode was about other Hasbro characters such as the Potato Head Kids, Moondreamers, or Glow Friends, also with a song.