I think to some extent, there is a desire to make period pieces look like they are on period stock. The 70s had a very Kodachrome feel, the 80s were more satur

I think to some extent, there is a desire to make period pieces look like they are on period stock. The 70s had a very Kodachrome feel, the 80s were more saturated. The 50s and 60s were Technicolor mostly. I almost believe that the 70s had that overriding yellow tint to it even though that's really just the film stock. And that was such a grainy film as well, it really fit with the dirty appearance of major US cities of the time. On the other hand, if you drop the nostalgia, you can make old time periods look fresh. The 70s was a time of vibrant color. Cars, clothes, rooms, signage was all bright, though it got dirty and faded quickly so that in the 80s we mostly saw it as a relic.