OK, I can certainly understand your approach and would offer you one more aspect you may want to consider. If you get two screens, you may also want two separate DVD players as well if your kids are different ages or different sexes, they will probably not be happy watching the same thing (even if it is on two different screens). Some of the headrest units also have individual DVD's in each unit. You will also need units capable of having isolate IR channels (so that each kid can listen to each DVD on wireless headphones)