NeoNightmareX

3.7, 3.7, 3.7, 4.0, 4.0

Nate Smith and the Heartbroken.

Shazam, Swipe (or 8pen), and, a personal favorite of mine, Fruit Ninja.
 
You could also look at Tested for some.

I own the Logitech Z-5500's and they are astounding. It might be a bit out of the range that you want but they are great 5.1 speakers.
 
 http://www.amazon.com/Logitech-THX-Certified-Digital-Surround-Speaker/dp/B0002WPSBC/

@Ace829 I knew that but, ideally, it would be great if major retailers carried AO games, retailers check I.D. cards of people of questionable age, or if parents actually looked at the games that they buy for their children.

@Axxol Definitely. Most, if not all, of the rules followed are based on the ZSG.

An AO rating so that it would be more difficult for little kids to get it.

As said earlier, S-video would be the best that you could do on SDTVs (to my knowledge).