the Crave app would have to be on the list of supported apps you can link. It doesn't look like many apps are supported according to this U.S. list. You probably have to be sure your country is set to Canada.
You can tweet Crave and ask them to support it, but it probably won't be a high priority unless it's really easy.
What about 5.1 audio?
Unfortunately, Digital/Surround sound is not yet available on Crave but it will be available soon.