I have a private channel I published, here in the US. I have people in Canada that say they can't access the channel. How do I release the private channel world wide
Go to the channel under your developer account. Select Edit Channel, then select Edit Properties. From that screen, you should be able to select the channel stores you want the channel available in. Once you've updated those, you'll need to publish a new package (you can just republish the existing package) to push the changes.