FIRST OFF . . .

After 28 years with CBS, Gene F. Jankowski, chairman of the CBS/Broadcast Group, said Thursday that he is leaving CBS to form his own company. Jankowski Communications System Inc. will buy TV stations and produce programming and will be headquartered in the Museum of Broadcasting building in New York City. Jankowski joined CBS in 1961 as an account executive with CBS Radio. He became president of the Broadcast Group in 1977 and chairman in 1988. He is also chairman of the American Film Institute. Concurrent with announcing his departure from CBS, Jankowski said he has been named a visiting professor of telecommunications at Michigan State University, where he received his master’s degree in radio, television and film.