Yeah I realize it's a common practice, but I still imagine the TOS producers had a much harder time of it than most. They had to figure a lot of this stuff out for the first time, and deal with stories and concepts that were probably much
more ambitious than what was normally seen on TV at the time.
Especially compared to something like Lost in Space, which usually only had to come up with different variations of their planet sets, or a new wacky alien costume every week. They didn't have to come up with space battles, viewscreen and transporter effects, time travel effects, or entire alien races like Trek did.