I did some research and I have to revise my former statement. Indeed, one TV station comes to my mind that could actually have an archived source of the OOT. Assuming they have it and they are willing to hand out such a recording, it would be very expensive. I just checked their homepage: A recording of a broadcast with a length of not more than 120 minutes on DVD-R costs 111.80€. For up to 180 minutes it costs 123.80 €.

This TV station could eventually also be a source for missing episodes of Droids and Ewoks. One just needs money... a lot of money :-(