He-Man and the Masters of the Universe S01 E43 The Royal Cousin

Prince Adam's cousin, the bratty and snobbish Prince Jeremy, visits the Royal Palace, and quickly starts to annoy everyone with his rudeness and spoilt behavior. When Evil-Lyn and Tri-Clops arrive on the scene, they take advantage of Jeremy's spoiltness to lead him into unwittingly helping them in a scheme to break into Grayskull.....