[enen92]

I agree with you. That way we can have a standard in which both variations (square/horizontal) work well. The 800x480 is also a relatively big resolution to allow people to easily manipulate the logos or scale the logos to lower resolutions. Better to scale them to lower resolutions than to have a small image we need to upscale in the future.

I've had a look into the dutch packages you mentioned some posts above. The only package (sat in lyngsat) I could find from the three you mention is canaldigitaal. Can you check if the others are there as well or if canaldigitaal has all the channels you made logos for?
Some of the missing channels might be part of other packages.

http://www.lyngsat.com/packages/CanalDigitaal-23E.html