Thanks, Joel!
That would be great data because of the breadth (sample size is 100x - 1000x bigger than anyone else could offer), were it not for the quirk in reporting you mention in last paragraph. That bias in player models represented might be skewing the stats.
But data is what it is and that will have to do. Throwing away the noise (0.02% nuts):
- HD 16:9 = 72%
- SD 4:3 = 24%
- SD 16:9 = 4%
Simplifying one step more: the two major native modes on Roku are 1280x720 vs 720x480, in a 3:1 split.
Again, thank you (et al.) for sharing.