Panasonic DVD-LV70 Portable DVD Player
Trip Nanny
The unit works as advertised. (Our young children), took it over on the first trip and didn't look back. They can view it together without any problems. They had been used to a very small screen on a VCR bag system in the car so the large screen was a hit.  The LV70 can come along in the plane and be connected to the headsets. The kids have requested it on just about every trip. I bought an inexpensive 9 volt power source from a local store that works well in the car to save the battery. This is an excellent product.