Per this first link, you can add premium channels (HBO). HBO would be accessible. Per the second link, you would have access to HBO Max through mobile devices/website. HBO Max isn’t part of Xfinity Stream but the HBO channel itself is. https://www.xfinity.com/support/articles/xfinity-instant-tv-faqs https://www.xfinity.com/hub/tv-video/hbo-max-on-xfinity?pc=1 With 10,000 hours of content, HBO Max is now available to new and existing Xfinity TV customers who subscribe to HBO either a la carte or as part of a package – along with Xfinity Internet customers who subscribe to HBO through Flex. Customers can access HBO Max by signing into the HBO Max app or website with their Xfinity credentials.
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