generate questions: It also includes the alternative 1440×1152 HDMAC scan format. (According to some reports, a mooted 750-line (720p) format (720 progressively scanned lines) was viewed by some at the ITU as an enhanced television format rather than a true HDTV format, and so was not included, although 1920×1080i and 1280×720p systems for a range of frame and field rates were defined by several US SMPTE standards.)
What scan format is also included in MBAFF? {sep_token} What was viewed by some as enhanced television format and not true HDTV format? {sep_token} A mooted 750-line was seen by some at the ITU as what? {sep_token} What were 1920x1080i and 1280x720p defined by? {sep_token}