Sandy, I just purchased a Roku 3 and hooked it up last Saturday. Like you, I was disappointed that HBO Go is not offered as a streaming channel through Comcast Xfinity. I would like to access HBO Go on my HDTVs rather than only watching on my tablet or computers. I am a relatively new Xfinity customer, having dumped Verizon FIOS for Comcast after 6 years. I am satisified with Comcast Xfinity overall, but Verizon is offering HBO Go streaming to Roku. I am sure Comcast will likley catch up soon.
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