Let's compile a list of links to previous posts that answer FAQs or have good/useful information. Good off-site resource links are welcome too, but trying to mine the wealth of historical DIY PVR knowledge in the forum archives.
You can also feel free to reply with your own answers/content/text to a FAQ and I'll just link to your post in this thread.
So fire up the
search and suggest good threads/posts and I'll edit this space to add the questions and links to the answers. I'll be awarding Karma to users who entries make it to FAQ list (which will come in handy, as you'll see soon!)

Thanks!
rampy
Example FAQ Topics to hunt for to get you started:
my card only supports 125 channels how do I PVR higher channels? also known as
how do I get my PC PVR to work with digital cable or satellite receiver?What's an IR blaster?can I watch a different show while recording a show? (on a single tuner card)
what software should I use?Can I use my old {insert software encoding card}?