As those of us who like to screw around investigate have discovered, yes, it is possible to download from ATV channels by pasting a direct link to the series. Yes, ATV stuff is way better than Amazon for old stuff because, for starters, Amazon don’t give a furry little rat’s behind about quality of old shows so quite a lot are interlaced while pretending to be progressive, and even Paramount’s own download service messes those up… badly! ATV is perfect though!
However, there are problems that SF needs to address:-
only forced subs are available to download, but that’s half of the problem,
a much bigger problem is that SF’s analysis is capped at 100 episodes!
Would be great if both of these were addressed @Wilson.Wang 😉
