The post-Jan 2003 registry format pretty well done now. Able to write most of it out to the registry. Someone else in Canada going down same route has been doing similar decoding. I explained how the Year is encoded. Might get some time tongith to do some more on this.
The folks at DigiGuide are well into deciding how to make their own PVR. Looking forward to see what it offers.
Finally ordered one - should arrive next week. It does have a documented HTTP API ... so might do a few things with it just for the hell of it ... e.g. scheduling live streaming from DG.