Kevin Shea, former president and CEO of Sirius Satellite Radio and YTV Canada, has joined the board of directors of Adcentricity Inc., a digital out-of-home media sales company. Shea, an executive with extensive experience in the broadcasting, cable, and telecommunications industry, is currently chair of the Ontario Media Development Corporation and president of SeaChez Inc., a consulting firm whose clients include the CBC, TELUS Communications, and Standard Broadcasting.