Progressive Scan
1. Progressive scanning (alternatively referred to as noninterlaced scanning) is a way of displaying, storing, or transmitting moving images in which all the lines of each frame are drawn in sequence…Progressive scan was included in the Grand Alliance‘s technical standard for HDTV in the early 1990s. It was agreed that all film transmission by HDTV would be broadcast with progressive scan in the US. Even if a signal is sent interlaced, an HDTV will convert it to progressive scan.
Source: Wikipedia