CBS

Từ điển Oxford Advanced Learner 8th

CBS [CBS] BrE [ˌsiː biː ˈes] NAmE [ˌsiː biː ˈes] abbreviation
Columbia Broadcasting System (an American recording and broadcasting company that produces records, television programmes, etc.)

Culture:
CBS was one of the original three US national broadcasting companies. It began as a national radio company in 1927 and added television in the 1950s.