COMCAST

Gary MacGregor has joined Comcast Corp.'s Comcast Cablevision of Delmarva Inc. as director of marketing. MacGregor had been director of corporate marketing at Triax Telecommunications Co. L.L.C. Janet Uthman has joined Comcast Cable Communications Inc. as director of special projects, Maryland/Delaware region. She had been director of corporate marketing at Black Entertainment Television. Comcast SportsNet has promoted Cynthia Bisha to director of marketing, from marketing manager.