STC does seem to have one thing in common with TOS, at least to a degree: a limited window to actually film the episode or the live-action sequences of it. They have to schedule so that everyone needed for the shoot can be there at the same time. For TOS the window was dictated by a different scheduling constraint: they only had about six days to shoot each episode because they had to shoot so many episodes within so many months. TOS in some respects might have had more of some resources available to them, but then their budget was dictated by forces outside their control. If they went over budget on one episode then the ideal was to try to save on another. Of course that didn't always work out. STC (and any fan production) is also dictated by budget and one much more constrained than TOS. The difference is that STC is doing it totally non-profit and no one is getting paid so every penny can go into production. Another distinction is that STC has resources simply nonexistent when TOS was being made: computer f/x. They are no longer constrained by having to build actual physical models (or even certain sets) and laborious fashioning of photographic special effects. A prime example are the hangar deck shots we've seen in "Lolani" and "Fairest Of Them All." Such shots could have been done during TOS, but it would have been time-consuming and expensive where the budget constraints simply didn't allow for it. Individual stories could be in development for long periods of time during TOS and so that mightn't be so different for STC, but a big difference is that TOS had several stories in development at any given time while STC can focus on developing one or two at a time. This also applies to post production. So the challenges STC faces are not totally dissimilar from those faced by TOS.