> It wasn't about nothing, but what did make it different is that the characters never changed. They didn't have these huge arcs and defining life moments. They just went about their lives and we watched.
Sorry, this sounds backwards.
http://tvtropes.org/pmwiki/pmwiki.php/Main/ResetButton
> This is very common to American TV shows both live-action and animated, particularly from The '60s through The '90s in part because programming directors like to have the luxury of repeating episodes in any order, and in part because (prior to the advent of the internet) watching or catching up on a missed episode could be nearly impossible for viewers.
See anything from Gilligan always ruining the rescue attempt to JD always screwing things up with the current romantic interest on Scrubs. There's a long history of shows trying to make baby steps against this (resolving a 'will-they-won't-they' situation, for instance) and the show basically dying as a result. Exceptions like Babylon 5 where major things changed were rare.
Seinfeld was "about nothing" in that the things the reset button applied to were so minor that you basically didn't even notice the reset button most of the time - you wouldn't expect them to majorly change the characters. That, and that it wasn't super-location-centric in the way that Newsradio is "about a radio station" - I mean, it isn't, really, it's about the characters there too, but 99% of the action takes place in the radio station.