HD vs SD, 720 vs 1080

Got a new intern in today and realized that as I was trying to explain video display and aspect ratios that I didn't have a diagram... Definitely need to make more diagrams for the intern packet.

So I made this in Illustrator to show the size aspect of Standard Definition (SD) versus High Definition (HD) whether it be 1280x720 or 1920x1080.

At least, this is slide 1 for my slideshow tutorial to show people.