Joanne Mazzu has been named director of business affairs for Columbia Pictures Television. She previously served as associate director of business affairs.

Former KCBS-TV and KNX-AM consumer editor Tom Vacar has joined Fox indie KTVU in Oakland, where he will contribute to the TV station’s programs and newscasts.

Laser-Pacific Media Corp. has appointed Leon Silverman to head its Pacific Video, Inc. division. Silverman is an EVP at Laser-Pacific. In addition, Jane Swearingen has been promoted to vice president and general manager and Holli Gailen has been moved up to vice president of operations at Pacific Video. Both will report to Silverman.

Hughes Communications Inc.’s DirecTv division has appointed Louise M. Wildee as vice president of finance. Wildee will report to Eddy Hartenstein, president of the satellite entertainment service.

Republic Pictures Corp. has appointed Jeffrey Brauer as senior vice president of business and legal affairs. He will report to Russell Goldsmith, chairman and CEO of Republic.