480 x 272 lines is so nearly 5 years ago. Toy Sat navs have this. A new Model with nearly 5" and less than 800 x 480 is crazy.
A Satnav with built in TV is crazy. It's obsolete too with much of Europe (and even UK for HD) using MPEG4 for SD and HD.
Ireland's DTT is MPEG4 only and no simulcast of SD and HD.
This is a truly obsolete and daft product.