The company -- whose cable networks include Discovery Channel, TLC and Animal Planet — forecast full-year revenue of between $4.55 billion and $4.65 billion.
Analysts on average were expecting $4.6 billion, according to Thomson Reuters I/B/E/S.
Net income available to stockholders rose to $293 million, or 76 cents per share, in the second quarter, from $264 million, or 62 cents per share, a year earlier.
Revenue increased 7 percent to $1.14 billion.
Analysts had expected earnings of 70 cents per share on revenue of $1.16 billion, according to Thomson Reuters I/B/E/S.
