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According to many it is considered normal and that you should use overscan to solve it!
Last edited by newpball; 5th Apr 2015 at 02:43.
In that location, probably vertical interval timecode (though it should be a few lines higher.) May be Macrovision.
This is WSS signal and this is line 23 in PAL (first half of line 23) - http://www.etsi.org/deliver/etsi_en/300200_300299/300294/01.04.01_60/en_300294v010401p.pdf
One of main functions is AFD http://en.wikipedia.org/wiki/Active_Format_Description and (my opinion) why it is not masked (WSS occupy normally not visible half line of the first visible video line).
TXT lines are on VBI area and they are not visible at all, usually they occupy more than few video lines (in fact they can start from line 6 till line 22).
Usually TV should have function to mask first half/whole line 23 to avoid visibility of WSS.
Last edited by pandy; 5th Apr 2015 at 11:25.
The Widescreen Signaling should not have been encoded. It is supposed to be in a vertical blanking gap.
Diagram in a German article about "exotic interlacing": The first half of the top line in the second field should not be drawn by a CRT monitor. (English translation by StainlessS)
Last edited by LigH.de; 13th Apr 2015 at 07:24.
In normal cases (when overscan is applied) this line not visible - it is only visible in analog TV with analog 16:9 mode on 4:3 screen + on digital TV where non overscan mode is used.
my side comment - usually digital encoders (but this mean digital analog signal composite/component form) can't satisfy requirement to half line - usually one of fields is longer by one line (average gives two half lines).