It's interesting to remember how niche Girls' audience really is. In a room in West Hollywood, certainly a neighborhood where HBO draws a crowd, most of the attendees hadn't heard of Lena Dunham or the show. We so often call things phenomenon or hits or whatever without stopping to reflect on the fact that every single iteration of NCIS probably has higher ratings, no matter how buzzy Mad Men or Girls or Homeland might be. That said, everyone tune in/download/pirate the premier of Girls tonight. It might not seem like it has broad appeal but I promise it's more relatable than NCIS.
And in closing, Amy said it best:
"Congratulations, Lena. I'm glad we got you through middle school"