From what I’ve heard, Teletubbies was one of the first children’s shows shot in high-definition (though I could be wrong on that and it might’ve merely been shot and edited on standard PAL video [with conversion to NTSC for American broadcast]). Are the Roku transfers HD (as the YouTube transfers undoubtedly are)?

One other thing to note is that WildBrain has a habit of tweaking the aspect ratio whenever they post something to YouTube (like squeezing a 16:9 show to 4:3, as I’ve seen on some Boohbah uploads). While I don’t doubt that the later episodes may have been 16:9 from the get-go, I’m wondering if the earlier episodes were native 4:3 or 16:9 cropped or stretched to 4:3…