Hello,
Here you just need to insert your capture source ("Hauppauge WinTV PVR PCI II Capture") into filter graph, then render it via ICaptureGraphBuilder2 from pin "656" using RenderStream. So the brief graph building will be looks:
ICaptureGraphBuilder2 _builder;
IPin _output = FindPinByName("656");
_builder.RenderStream(null,null,_output,null,null);
Regards,
Maxim.