Rec. 709

ITU-R Recommendation BT.709, also known by the abbreviations Rec. 709, BT.709, and ITU709, standardizes the format of high-definition television, having 16:9 (widescreen) aspect ratio. The first edition of the standard was approved in 1990.


ITU-R Recommendation BT.709, also known by the abbreviations Rec. 709, BT.709, and ITU709, standardizes the format of high-definition television, having 16:9 (widescreen) aspect ratio. The first edition of the standard was approved in 1990.
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