I wasn't expecting this nostalgic TV show could be this good. In my opinion technical details in first season was not that charming but not only storyline that gets stranger, also all the technical details getting stranger.

I know first three seasons were quite the same in some ways. But the Season Four explains that situations. Not all minor things, but explains the major questions.

There is some great references to The Thing, E. T., D&D, Middle-earth and even more. That references makes ithe TV Show more exciting. Especially for geeks.

Film Editing was perfect even from the first season.

Cinematography, VFX and Sound is got better in the second season. They were a bit weak at first season.

Makeup, Costume Design, Scores, Art Direction & Set Decoration were quite good from the first season, they get a bit better along the seasons.