From a media release by the CRTC:
Ads during the Super Bowl get a lot of hype. They are an important part of the overall spectacle, and viewers look forward to watching them.
For Canadian viewers this has been a problem. They don’t see the same ads as those seen in the US because they are replaced with Canadian ads.
For a number of years, Canadians have complained to the CRTC that they want to see the American ads during the Super Bowl. Many Canadians spoke about this considerable irritation during Let’s Talk TV: A Conversation with Canadians. The CRTC has taken action to resolve the issue.
Beginning at the end of the 2016 NFL season (i.e., the Super Bowl in 2017), simultaneous substitution will no longer be allowed during the Super Bowl. Canadian viewers will see the same ads as American viewers.
Until then, you can watch the American ads broadcast during the Super Bowl on YouTube’s AdBlitz channel.