Impossible. Simple maths and physics will tell you that a even a 15inch screen will use a 100watts minimum. Since most AAA batteries are 2000 milli ampshours if your lucky at 1.5 v the P= V x I equation will tell you this cannot work. Not enough current and not enough voltage. Redesign the TV howver and it may be posiible with a LED screen. Complete redeisgn will be needed though. Safety. Dont risk your marriage.