1080p Up-scaling produces the highest on-screen picture resolution by increasing lines from 576i SD signal to 1080p HD with the use of a HDMI (High Definition Multimedia Interface) cable.
High Definition Multimedia Interface, the first industry-supported, uncompressed, all-digital audio/video interface. HDMI provides an interface between any audio/video source, such as a set-top box, DVD player, and A/V receiver and an audio and/or video monitor, such as a digital television (DTV). HDMI supports standard, enhanced, or high-definition video, plus multi-channel digital audio on a single cable. It transmits all ATSC HDTV standards and supports 8-channel digital audio, with bandwidth to spare to accommodate future enhancements.
Progressive scan displays all of the lines of the image sequentially in a single pass.