Shares of Scripps Networks Interactive Inc. rose the most since Aug. 9. The owner of Food Channel reported first-quarter net income of $115 million, or 73 cents per share, compared with $101 million, or 59 cents, a year earlier. Those results beat the average analyst estimate by 21 percent. Results reflect ad revenue of $356 million, up 10 percent, and affiliate fee revenue of $168 million, up 16 percent.