The Denon 5700 has about 27mhz bandwidth on it component switching. You could try to see what its like with HD. With DTV it should not be a problem. You may need to wire direct to the display for HD. Remember when you upgrade the AVR, try to find one that has about the same quality power supply, Denon went for broke with the AVR-5700 and placed a very capable & powerful 1.2KVa power plant in that unit.