I generally don't like purely 'whatever of the week' series - I don't mind some episodes of that kind, but I prefer
some kind of arc or ongoing story, even if it's not touched on week in, week out.
It does work on some shows though - out of the stuff I watch, the likes of the various CSI shows spring to mind as series that can do mostly one off episodes.
I don't see why not having ongoing arcs would make someone hate a show though.