MONTREAL - Cogeco Cable has launched WGN HD, a U.S. digital specialty channel from Chicago, the company announced today. "As we continue to invest in our state-of-the-art cable network, we will continue to launch new HD channels as they become available," said Ron Perrotta, vice-president, marketing of Cogeco Cable. WGN HD (channel 293) will be available for free to the majority of Cogeco digital cable subscribers who are paying the $6 HD access fee and who also subscribe to its movies package. "Our digital cable service has been gaining popularity with more than 43,000 new subscribers in the three first...