I have a IMAC and the sharing video is enabled and I share on a network between my IMAC and my MACBOOK with no issues. I have just purchased a Sony Bravia TV which is wi-fi compatible and is linked into my network fine. I can stream U-tube etc to the TV direct from my wireless router, but I cannot work out how to get the TV to stream from my IMAC on the network. Is this possible and if so how do I do it. Thanks.