[dhekir]

Why is it so hard to find a single HD video with this line? I searched for 'football "yellow line"' and filtered only HD videos, and none in the first page actually showed some game footage with the line. The same for 'football "first down line"'.

Is there no HD footage for these events? Or do even short extracts get removed due to copyright issues?

[snowwrestler]

You won't find it with those search strings because the American viewer (presumably who is posting those videos to YouTube) takes it totally for granted.

Try searching for just "first down" with football, or viewing some game highlights on NFL.com.

[clarky07]

I was about to say the same thing. You wouldn't even need to search first down, just watch any football footage from the last decade. The first down line is going to be in pretty much every shot. Note that it isn't always yellow. Sometimes it's orange, and there are also other lines, namely the line of scrimmage, that are marked as well.