(Reuters) - Time Warner Inc reported fourth-quarter net income that beat estimates on Wednesday while the media company raised its dividend and started a new stock repurchase program, sending shares higher. Time Warner, which owns the CNN and TNT cable networks, premium TV service HBO, People magazine and a movie studio, said it is raising its quarterly dividend by 11 percent to $0.2875 per share. The company's board also authorized a new $4 billion share repurchase program that started in January. ...