Originally Posted by StevenNT:
“I have Windows 7 Media Centre with a DVB-T/T2 PCIe card and these channels tell me I'm not compatible. So even though I have an internet connection and WMC supports MHEG it fails here. I guess I'm not "True" Freeview+ HD in their eyes.
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AFAIK it's the Interaction Channel extensions to MHEG5 (MHEG5-IC) rather than HD transmissions that are required to receive these IPTV services.
Microsoft added basic MHEG5 support to media centre with the Vista TV Pack some years ago, I believe this was developed in Ireland as a special for UK users and it does not seem to have been updated for Windows 7.
It remains to be seen if Windows 8 will include support for MHEG-IC, but I think it's unlikely given the local nature of this standard.
I'm also disappointed that my one year old Sony HDTV does not support MHEG5-IC and there's no sign of a firmware update.