Yep - that's the card I was recommending as well ! You can record a 'multiplex' at a time (a multiplex is a bunch of channels that get broadcast on the same frequency) so you can't record all TV output ;) But if it's on the same multiplex you can record & view multiple channels at the same time.
I use XP Pro with mine but it's fine with media centre. You could always add a USB DigiTV box to double up your decoding capacity if you need to...
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