The latest version of this article I could find was updated 04-02-2019 and is at https://forums.xfinity.com/t5/TV/ANSWERED-What-is-Xfinity-Stream-on-Roku-and-how-does-it-work/ta-p/2940367
That version lists the Roku Ultra 4660 as compatible. The current model as of 05-28-2019 is Roku Ultra 4661R. Is it safe to assume that everything stated in the article about model 4660 is also true for model 4661R?
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