I watched one episode of this show a year or two ago. My recollection is that it was a bunch of dirty-looking, hippy 20-somethings with a lot of angst, whining about relationships.
In that episode, Dunham featured herself going to the bathroom - twice. Once while squatting over some railroad tracks.
OMG they showed her going to the bathroom?? And being HBO they can show everything, not just imply what was going on.
Off topic, but, is there any reason to show bathroom functions??? We hear about gratitious sex in movies, but sometimes it is actually germane to the plot. I have a hard time thinking of any situatikn where characters doing their business is important to the storyline.