This Recommendation specifies a reference test pattern which may be used with any of Recommendations ITU-R BT.601, ITU-R BT.1358, ITU-R BT.1543 or ITU-R BT.709.The pattern is designed for use in either 16 × 9 aspect ratio or 4 × 3 aspect ratio.
ITU-R BT.1729 SPANISH-2005 history
2005ITU-R BT.1729 SPANISH-2005 Common 16 × 9/4 × 3 aspect ratio digital television reference test pattern