The Sci-Fi Channel has begun a six-figure marketing campaign to promote its forthcoming primetime TV series, Medium. The month-long activity has just gone live and revolves primarily around multi-channel TV advertising with extensive online activity. Sky One, Hallmark, Living and ITV2 and will carry the campaign in three bursts until early May. The online activity includes expandable banners with the capability to stream the TV ad on Yahoo!, wanadoo/icircle,, and, and moving picture units on