I have a hauppauge hd pvr on order and will work on getting it supported in TV3 soon. I have a lot of .NET experience but very little DS/DirectX. My plan is to create a new class that inherits TVCardBase that builds a working graph. It looks pretty straightforward, but I noticed all of the other classes for specific card types add a Mpeg2Demux to the graph. This new device encodes to h.264 - does TV3 work with any existing cards that use h.264? Thanks.