MONTREAL – Quebecor Media Inc. reported Tuesday an 82 per cent rise in third quarter net income, largely on the strength of a big quarterly increase in cable customer sign-ups and the acquisition of Osprey Media newspapers. Newspaper and broadcasting segments also showed improvements, as the company reported a 16% increase in revenues from the third quarter of 2006 and an almost 30% increase in operating income. "The strong performance was spearheaded by the cable segment, which once again posted substantial increases in the customer base for its cable telephone, Internet access and digital cable television services,” Quebecor Inc. President...