These images we get do tend to make a person wonder about minute and strange things. The Q woman at El Paso appears to be folded vertically in the still shots. I stared at those images for the longest time trying to find the secret the line was highlighting. No, as far as I can tell there isnt one. I didnt find the staple in her bellybutton either.
Lines like that are the result of taking a picture of a video display and happening to catch the (usually too fast for the eye) raster scan.
Rally nothing to see here, other than it’s pretty good proof that the image was actually being displayed on the display screen, rather than painted on the glass by some vandal.