TORONTO -- Moody's Investors Service said this week it has placed the long term debt ratings of Shaw Communications on review for possible upgrade. The rating action “was prompted by the company's ongoing strong financial performance and solid credit protection measures,” says the Moody’s release. The review will focus on Shaw's future prospects in the context of its business and financial strategies, management's commitment to strong and stable credit protection measures, liquidity planning, term debt refinance plans, and cable licence renewal. Moody's will also review Shaw's plans to exploit its recently acquired wireless telephony spectrum and anticipates that the review...