SASKATOON - Corus Custom Networks has inked a service agreement with Display Systems International (DSI) to provide data for its television scrolling guides.Corus Custom Networks, a Corus Entertainment company, provides scrolling guide television services to all of Shaw Cable’s locations.DSI has been operating since 1983 and its current line of products, which include LineUp and the Elite series of character generators, are installed in various cable operations across North America.www.displaysystemsintl.comwww.corusent.com