Since when was YDS '75 on Shokus tapes?
Covering the Screengrabs
First off, let's start with the logo pic. The chase lights, if you look really closely, are in the EXACT same position. This could, FEASIBLY, be coincidence.
But, in the 2nd picture, the coincidence window is stretched RAZOR thin. Everyone and everything are in the EXACT same spots in both pictures. The only differences are that A)The Brightness has been turned up a tad, B)The Edges have been slightly cropped [which is the case for nearly all pics on his sight], and C)There's JPEG artifacts in the picture from where the file was resaved...
(There are rarely if ever artifacts left over in an original screengrab.....I know there are none in the ones I take using my Dazzle [and by default, WinXP saves the screens in JPG format]. It's only after you take a pic into an editor and edit/resave it that the artifacts appear [The amount of artifacts is dependent on the compression amount...default leaves a noticeable but not major amount, which the pic in question has])