It was the quietest stunt casting ever as CBS buried news that David Arquette had replaced actor Ryan Hurst as Patricia Arquette's brother on "Medium" in a fairly innocuous episode rundown released last week. Although a lack of desire to hype the guest spot is understandable given David's recent real life transgressions.
David's episode, "Only Half Lucky," airs Friday and revolves around a dream that causes Allison to become suspicious of her brother's recent success. Guess art imitates life on "Medium" only as far as casting is concerned. [SOURCE]