Toshiba MD9DL1 9-Inch AC/DC TV-DVD Combo
An incredible little system
I bought this system for one reason and one reason only: Entertain the kids in the car.  I really did not care about the picture or sound quality.  I just wanted something small to fit in the car and that I could easily haul around.  To my surprise the picture is crystal clear and the sound of the system is awesome.  You can probably find cheaper systems, but you cannot go wrong with this one.  I would not trade my TV/DVD combo for anything.