Comcast recommend

On their FAQ website comcast have the following question:
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Do I need a high-definition (HD) television to view 3D programming?


The 3D TV required to watch this broadcast is an HD television. Models from manufacturers include Sony 3DTV, Panasonic Full HD 3D TV and Samsung Full HD 3D TV. A standard HD television will not be able to display the 3D effects broadcast using this new technology. In addition to the 3D TV, every person watching
will need 3D glasses from the TV manufacturer


http://customer.comcast.com/Pages/FAQViewer.aspx?Guid=0715d308-c4bb-4dc4-9a3d-2d590f10d1ea&fss=tv&AspxAutoDetectCookieSupport=1

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So wanting to watch their excellent 3D on demand material in 3D i purchased one of the televisions mentioned above for $2K with glasses.
All was going great until i decided to pause the on-demand whilst in 3D mode, and i could not!
A quick google search latter gave me no answers, but after learning about the 3d technology i came up with my own conclusion that the active shutter IR link to the glasses from the tv was interfering with the comcast Motorola IR remote. Now the problem was how i was going to prove it.