ITU-R BT.802-1-1994 Test Pictures and Sequences for Subjective Assessments of Digital Codecs Conveying Signals Produced According to Recommendation ITU-R BT.601
that digital signals defined according to Recommendation ITU-R BT.601 are required to be transmitted through point-to-point transmission links
ITU-R BT.802-1-1994 history
1994ITU-R BT.802-1-1994 Test Pictures and Sequences for Subjective Assessments of Digital Codecs Conveying Signals Produced According to Recommendation ITU-R BT.601