Good holiday financial news for Comcast, which "saw its market value close above $100 billion for the first time, validating the bet it made on NBC Universal almost two years ago," writes Alex Sherman. "The company has benefited from improving prime-time ratings among 18- to 49-year-olds at the broadcast network, which climbed from last place to first this season." Topping off the good news is Comcast's first place rank in the "16-member Standard & Poor’s media index this year."