Context: 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.)

Question: What scan format is also included in MBAFF?
Answer: 1440×1152 HDMAC

Question: What was viewed by some as enhanced television format and not true HDTV format?
Answer: a mooted 750-line

Question: A mooted 750-line was seen by some at the ITU as what?
Answer: an enhanced television format

Question: What were 1920x1080i and 1280x720p defined by?
Answer: US SMPTE standards

Question: What scan format is never included in MBAFF?
Answer: Unanswerable

Question: What was viewed by some as enhanced television format and not true SDTV format?
Answer: Unanswerable

Question:  A mooted 750-line was seen by some at the IEU as what?
Answer: Unanswerable

Question:  What were 1920x1080i and 1280x720p not defined by?
Answer: Unanswerable