But in the US, there seem to be an awful lot of outliers, and it's on the strength of those series that Netflix initially established their following: Friends, The Office, Park and Rec, Seinfeld, Community, The Walking Dead, The Blacklist, Gilmore Girls, Grey's Anatomy, West Wing, That 70's Show, Supernatural, Criminal Minds, and I could keep going, honestly, for quite a while.

So yes, there's an extent to which 5 or 8 seasons is less common, but the goal for US shows has been 100 episodes for decades now, which is usually 5 seasons of 20+ episodes each.

If Netflix is adopting a more UK-like approach, that might result in better TV eventually, but it would be nice for creators to know they have to tell their story in 16 episodes rather than 100.