The image you see on the television screen is refreshed – or “re-drawn” – from the top to the bottom with alternating horizontal passes of the cathode ray. The “scrolling bar” you see whenever you point your video camera at a tevelvision screen or CRT monitor is a result of the difference in scan/refresh rate from the monitor and your camera’s shutter speed…they have two slightly different rates. You can fix/minimize this by adjusting the shutter speed on you camera – some models have sepcific settings for television and computer monitor screens.
Plus, it goes without saying these days, you oughtta have permission to record someone else’s work, no matter how or why you’re trying to do it.
