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We have a few-months-old samung smart TV and new cox service. HBO go is a wonderful app that we have access to and enjoy. But the last couple of weeks HBO go will not play. It will start a movie then give the error "We're sorry, video cannot be played at this time." I tried to call Cox and they said it was an issue with the app itself and I was transferred to another department, but after 20 minutes I was still on hold and had to leave the house. Netflix can be streamed without difficulty so I can't imagine its an internet issue. HBO go works perfectly on my laptop -- just not on my smart tv. Any help would be appreciated.