Diane Zipursky, senior counsel, NBC, Washington, D.C., named VP, Washington law and policy, there.

Jay Switzer, senior VP, programming, CHUM Television, Toronto, has added senior VP and GM of ChumCity to his duties, there.

Randall Smith, VP and GM, WPHL-TV Philadelphia, resigned.

Michael Zucker, senior VP, creative services, television, MCA, Los Angeles, joins KCOP-TV as director, marketing, there.

Appointments at WWMT(TV) Kalamazoo, Mich.: Julie Lee, account executive, WOTV(TV) Battle Creek, named account executive; Juli Agacinski, director of community relations and promotions, West Michigan Grand Prix Association, named account executive.

Appointments at KXJB-TV Valley City (Fargo), N.D.: Darin Unterseher, graphic designer, named director, product services; Lynette L. Samuelson, accounting/office manager, Elder's Radio Communications, there, named business manager.