shares of comcast corp cmcsa are up 17 in thursday’s premarket trading after the media giant topped expectations with its secondquarter revenue and profit comcast recorded net income of 43 billion or 102 a share compared with 34 billion or 76 cents a share in the yearearlier period on an adjusted basis comcast earned 113 a share while the factset consensus was for 98 cents a share revenue increased to 305 billion from 300 billion while analysts were modeling 301 billion themepark revenue rose to 22 billion from 18 billion and benefited from the opening of super nintendo world in the connectivity and platforms business comcast shed 19000 net domestic broadband customers while it added 316000 wireless lines total domestic video customers fell by 543000