I tried to install it on a fresh, fully-updated Vista and got "This update is not applicable to your system" (or similar wording). I believe MS has sneaked in an update that prevents installation except by authorised OEMs.Are you sure ?
I found a leaked copy from a Russian site (don't know which version this was), and originally got this error message as well.
Then I remembered that I was not running Vista with SP1.
After installing that, it no longer gave that error message and allowed me to install.
Indeed : mixed tuner support (in my case DVB-S and analogue cable, but no DVB-S2 support and no Diseqc either).
I could get BBC HD to show up by first using DVBViewer to switch to Astra2, then quitting it and firing up Mediacenter, and in setup choosing to point at Astra2 (Mediacenter still has no support for Diseqc !!!).
HDTV playback seemed quite smooth, and files were saved in that new fileformat.
I did not see many other useful things (still no automatic aspect ratio detection, for instance).
Also, there was still a 2 tuner limit (I have 2 DVB-S2 cards and an analogue cable tuner).
I'm sticking with DVBViewer for now, together with VMC. At least it supports DiSeq and I can get BBC HD.
Sigh.
RS
This could be a step forward though !
I have not yet tried DVBSBridge with this version, but I assume it should be possible to use a virtual DVB-T tuner with this Mediacenter version, and then tune in to any station.
The only limit that was there up till now was that the fileformat DVR-MS had no support for H264, but with that gone it should be possible to have all channels in Mediacenter, FINALLY !
PAL territory, using analogue cable Hauppauge PVR-350 and Hauppauge PVR-250, living in Belgium, Europe
http://www.extrabuttons.netFor digital TV (satellite), currently using DVBViewer