Updated some Studio logos and fixed mpeg2video

Per the issues discussion, updated the mpeg2video line, as well as added/replaced some logos.
I know the ABC_Australia logo shouldn't have shading, but they just came out with a new logo to replace the metallic one, and the ABC1, that has shading in it. Since the shading is black-on-white, it should work in any instance. There are other logos with shading as well, so I didn't see this breaking style for this exception.

Anyway, this is my very first pull request, so I hope I'm doing it right.