Formed in 2001, SMG is the result of a merger between the People's Radio Station of Shanghai, East Radio Shanghai, Shanghai City Television, and Oriental Television. It has 11 analogue TV channels, 90 digital paid cable TV channels, an internet TV service, plus 10 analogue and 19 digital radio services. The group also operates and owns five sports centres and 14 cultural art centres. According to a survey of AC Nielsen, eleven of the group's TV channels have achieved a market share of 76% during prime time in 2003.