For a television series about the supernatural, Charmed kept audiences glued not just because of all the action and the fantasy, but also with the more commonplace relationships and struggles of the Halliwell sisters. With the show, producer Aaron Spelling again proved that he knew the formula for TV success: an attractive cast (in this case, led by an irresistible trio of beautiful actresses), a good premise, an ever-twisting plot, and good old family drama.