If the raster interlaced the process, painting one set of lines from top to bottom before painting the second set, the flicker is was reduced. The result is an odd and even field of information that goes by so fast that all you see is a blended single image. Desktop video doesn't have to worry about interlacing. In fact, it improves if you can remove the interlacing. This saves time but may not be the best look for your footage if you are also putting it to tape.
Some capture cards offer a deinterlacing feature.
Or you can usually deinterlace in your digital editor. In Adobe Premiere, you can choose to deinterlace a clip by selecting a clip in the timeline, pulling down the Clip menu and choosing Video Options and then Field Options . Then choose the Always Deinterlace check box. You can also deinterlace a movie globally upon export by choosing the Deinterlace option in Special Processing area of the Export Movie Settings . Deinterlacing usually isn't an issue if your video falls below half size at capture.