Well, color me impressed -- my understanding was that Roku was formed as a spinoff from Netflix around the release of their first streaming player. This is sort of confirmed by the Roku wikipedia article, which does not, for example, mention the HD1000 at all!

I guess Wood founded Roku but it was basically semi-defunct when we went to work for Netflix, and then the "spinoff" was basically letting Wood poach his team from Netflix over to his existing company to staff up and sell the first streaming device.