[old_tv_nut]

What is the source of the test pattern?
NTSC transmitters had a phase pre-distortion filter meant to compensate the IF phase/delay response of early color sets. The effect was to delay the luminance a bit compared to the chroma. Sets soon began using different IF responses, so there was a mismatch to the standard FCC NTSC predistortion, corrected by picking the correct delay for the luminance delay line in the receiver. BUT, consumer video sources did not/do not have the predistortion filter, so the chroma may appear positioned a bit to the right of the luma. How much of this effect occurs depends on the particular receiver's IF design.