Around ten years ago, I bought a brand new Nissan DVD player off eBay. The screen has a mounting arm a bit like an angle-poise lamp and fits in the centre of the rear seat. I've tested it and everything works. I'm planning to fit it over the summer holidays. It has a remote, built-in speakers...
To make life easier, slacken both cables fully off. Then push the bottom of the h/brake lever in with a screwdriver so the lever goes right back, past the stop. This retracts the shoes enough to allow Any Brake Drum to be slid off with ease. This is a factory tip from Citroen (same brake family)...