He-Man and the Masters of the Universe a "life lesson" or "moral of the story" at the end of each episode. This moral was usually directly tied to the action or central theme of that episode. The show was so successful that it spawned a spin-off series, "", following the adventures of He-Man's sister, Princess Adora. Mattel's subsequent attempts to relaunch the He-Man toy line also led to the short-lived sequel series "The New Adventures of He-Man" in the early 1990s, and an update of the series for a contemporary audience in 2002. It is also noted for featuring early script-writing work from J. Michael Straczynski, later
He-Man and the Masters of the Universe than actually punching enemies), though he still could not use his sword often; more often than not He-Man opted to pick up his opponents and toss them away rather than hit them. The cartoon was controversial in that it was produced in connection with marketing a line of toys; advertising to children was itself controversial during this period. In the United Kingdom, advertising regulations forbade commercials for He-Man toys to accompany the program itself. In similar fashion to other shows at the time, notably "", an attempt to mitigate the negative publicity generated by this controversy was made by including