The Avia disc, and the Sound & Vision HT Tune Up disc, goes into some detail on setting up a home theater. Then gives you the colored plastic pieces needed to set your tv up, about as good as you can get it, without calling in a pro. It also gives you the pink noise for calibrating your speakers, with an SPL meter.
Then they give you demo DD and DTS tracks to enjoy.
Some good stuff there............
If you use Netflix or BlockBuster.com, you can get Avia 1 & 2 from them.