I have a 50" Panasonic plasma (TH-50PX75U with 1366x768 [720p] native resolution) and the Panny BD30 Blu-ray player. The setup allows me to choose 1080p on the BD30 player. Since my plasma is 768p, would selecting 1080p be a bad thing? Would it be a better or worse choice than choosing 1080i or 720p? Thanks.