This sounds like a great idea! A few things, though…
-Make a Dolby Stereo mix for the episodes
-Upscale them for HDThe final mixes for the original cuts of Pingu were (presumably) mono. Are there any (and enough) efficient elements available to use for the Dolby Stereo/Surround mixes? It’d be interesting to know anything you think would benefit from a matrixed surround remix.
What resolution and frame rate do you plan to upscale to? The series was (presumably) shot/edited at a frame rate of 25p/50i.
I’m planning that would be a 1080p upscale. I’m assuming the show was shot on film, seeing the BTS stuff it has.