Comcast SportsNet Philadelphia (sometimes abbreviated as CSN Philadelphia) is an American regional sports network that is owned by the NBC Sports Group unit of NBCUniversal, which in turn is owned by locally based cable television provider Comcast (and owns a controlling 75% interest), and the Philadelphia Phillies (which owns the remaining 25%). It is the flagship owned-and-operated outlet of Comcast SportsNet. The channel broadcasts regional coverage of professional sports teams in the Philadelphia metropolitan area, as well as college sports events and original sports-related news, discussion and entertainment programming.
CSN Philadelphia is available on cable and fiber optic television providers throughout southeastern Pennsylvania and southern New Jersey and most of Delaware. The network maintains main studios and offices located inside the Wells Fargo Center in Philadelphia's South Philadelphia district; it also operates a small secondary studio inside Citizens Bank Park, which is used sporadically during Major League Baseball season. Source