The version aired on CBS omits several scenes seen in the longer Canadian/European version:
1) As Nick walks up the museum steps he hears Schanke's voice. As Schanke is too far away to be heard by a mortal, Nick tells a fellow cop that he can smell Schanke's cologne.
2) Nick flinches at the sight of a cross walking up the steps.
3) Nick shows Alyce that one of the suits of armor at the ROM is wrongly put together.
4) When Nick tells Nat about Lacroix there is an additional flashback.