The SFX was the limitations of tools they had, (and budget) but there were a lot of aspects of set design and stunt doubles where they could get away with more on a TV show in SD compared to a movie that was on film. When HDTV started, even news shows were forced to drastically improve the quality of the set pieces and makeup because small details could now be seen.
It’s not so much what they got away with but working with the tools they had. It is the same for pixel art in the early gen consoles.
The SFX was the limitations of tools they had, (and budget) but there were a lot of aspects of set design and stunt doubles where they could get away with more on a TV show in SD compared to a movie that was on film. When HDTV started, even news shows were forced to drastically improve the quality of the set pieces and makeup because small details could now be seen.