WINNIPEG – Despite an improving advertising market and lower operating costs, CanWest Global Communications saw a net loss of $46.1 million for its second quarter.This compares to a net loss of $1.44 billion for the same period last year, after the company recorded charges to goodwill and intangible assets totalling $895 million and a $185 million, respectively. Consolidated revenue for the quarter ended February 28, 2010 was $479 million, down 3% from $493 million year-over-year.Operating profit was $94 million, up 36% after excluding results of CanWest’s now defunct E! network stations which were sold or closed as of August 31,...