Ah yes the video-on-demand distribution path. Which content provider will be the king?
Clancy_s you and Jetfire bring up a serious distribution path and content provider- Youtube that will be gaining a lot of traction in the next 2-3 years before the next Trek TV series goes into Production.
I think in the end that's how it'll be, once fast enough connections are widely available and once the studios accept the need to make it available to everyone at the same time. Electronic distribution by subcription / paid per download or whatever is IMO the best way to do it.
In regional Aus there's not much option atm for those wanting to do it legally, especially for someone using linux, so I'm not familiar with any of the options in your poll.