TREASURE KING  Once a rockstar, celebrity collector Richie Marcello scours the globe to buy and sell some of the world's most highly sought after museum-caliber treasures and rare Hollywood memorabilia many believed to be lost forever. Richie is always on the hunt to uncover relics that naysayers have sworn would never be found.  Richie showcase the lucrative items he's found and hear the insider stories that defy belief.