Original Nintendo Systems For Sale. Buy a classic Nintendo Entertainment System "NES" pak and start playing your favorite games from your childhood. All NES console paks are fully refurbished, cleaned, tested and covered under our free 120 day guarantee. All paks include hookups for all new and old TVs. So no matter if you are playing on your old 19 inch tube television or you 55 inch LCD, we've got you covered. Set up instructions and free lifetime phone service is included with every system console sold! All you have to do now, is pick out your favorite NES pak today!