Actually, that's a good-looking key, considering the poor lighting -- it is absolutely HORRIBLE -- and that it was shot on DV.
Whether the chroma key background is blue or green is largely irrelevant. The reason green is typically preferred is because most cameras use the green channel for the luminance part of the picture. But with good-looking video, it doesn't make all that much of a difference.
Does shooting on DV really make that much of a difference? It certainly does! DV has abysmal color resolution. If you've never heard of color resolution before, you should watch this podcast, which gets into the issue of color resolution:
http://macbreak.libsyn.com/index.php?post_id=70596
After you're done watching it, keep in mind that PAL DV's 4-2-0 color resolution is just as bad as NTSC's 4-1-1 color resolution. Shooting with HDV is just as bad.
Shooting with something that has 4-2-2 color resolution, like the Panasonic HVX 200 P2 camera, is pretty good.
Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA
