History not working.

When I watch a show at http://xfinitytv.comcast.net/ the progress bar is not shown. I attached a picture to better explain. I watched every show entirely. When I watched part of a show and stopped, the bar would show partial progress and I could resume where I left off. That feature is gone. I called customer service and they had me do the usual clear cache, clear cookies and nothing worked. Any suggestions...Image may be NSFW.
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