With more than a million discs sold and a catalogue of around 100 titles, the UHD Blu-ray format has defied critics and appears to be finding an audience amongst quality keen 4Kphiles. But if you want to jump on board, what UHD deck should you buy? We finally have a definitive answer: the DMP-UB700. The second 4K Blu-ray player released by Panasonic,...