All that pom-pom waving seems to have paid off. Glee returned Tuesday night after a four month hiatus and enjoyed its biggest Canadian audience ever, with 2,120,000 tuning in according to BBM Canada overnight estimates.Wednesday’s Global release claims Glee (featuring Naya Rivera, right) beat CTV’s American Idol in the 18-49-year-old demo nationally 1,268,300 to 1,049,600,