It was on my flight in April 2012
LGA to MSY direct. My companion and I got the F upgrade (at the window!) for me (GM) and my companion (peon). We were on vacation and really wanted to toast our vacay with some champagne. We asked and the FA didn't hesitate at all and brought us two glasses of bubbly. I'm not a champs oeniphile but i can tell you they did not serve us Vueve but it was champaigne-like and served the purpose of a toast!
After that we went to screwdrivers anyway.. love those 8am flights getting drunk in F!!
M