a company formed in 1990 that uses cables or satellites (= electronic devices that move around the earth in space) to broadcast television programmes. It was formed when British Satellite Broadcasting and Sky TV joined together. People in Britain can receive the programmes by paying for the service and using a small satellite dish (= a device for receiving signals from a satellite) which is usually fixed to the outside of their homes. Programmes include films, sport and news. Some sports events can only be seen on BSkyB. BSkyB also provides broadband and telephone services. The company trades under the name Sky.