Bazinga! As expected The Big Bang Theory came back big with overnight estimated Thursday night audiences of 3,718.000 and 4,053,000 on CTV. Grey’s Anatomy (2,313,000) was another big winner for the Canadian private broadcaster.An out-of-simulcast pre-release of the new remake of Charlie’s Angels managed 955,000 at 7 p.m. on CTV.Over at sister station CTV Two,