Tvheadend

Hi!

Currently using tvheadend with a tuner card with OTA TV channels and XMBC front-end and all is great.

I'm planning to buy a (cable) subscription service. The box has HDMI out. Assuming HDCP is NOT an issue and changing channels is also not an issue and I can present a "clean" unscrambled feed to a USB HDMI capture card.

1) Can I use tvheadend to stream the video/audio ?
2) Will the XMBC front-end be able to "read" the video/audio (Note: Changing channels is not important)
3) Recommendations on what HDMI capture card to buy ?

While I've seen posts mention this, and for analog in pre 3.4 versions, I've not found anything for digital and the current / future versions.

Thanks in advance!

JJ