Sounds like either you need to re-download the image and burn it again.  If that fails, check your IDE cables in your PC and in your tivo.  A green screen typically is from corrupt software, which leads me to believe the problem is your image and/or burning and baking, but every so often it could be from a phsyical problem in the tivo.

When you say you get the green screen when you unplug it, what do you mean by that?

Just make sure it finishes baking you follow all the instructions and you should be fine. You might also try a different pc as well.

Okay, that's what I thought, just wanted to clarify.  You may want to not pull the plug so quickly, that could be causing it.  When you boot up the tivo, it's grabbing a lot of satellite data for the first couple of hours and processing it.  It takes a bit of time.  I'd retry burning the drive and then leaving it overnight, then unplug it, then replug it up and see if the gsod occurs.  If it does, then you should start with the basics.

1) Redownload, burn and bake the drive

2) run diags on the drive, a new drive isn't always 100% just because it's new.

But I'd try just redoing the drive, installing it and leaving it for tonight and check tomorrow.