More than just 31 flavors
Here's a look at Baskin-Robbins, which has been trying to shed its old, linoleum-ecnrested image for something more hip in order to compete in a crowded marketplace. Boston Globe has the story, though I wrote about this about two years ago when they opened one of their first new concept stores with the new logo in Stevenson Ranch. It reminded me of Starbucks, but brighter.
Local historians will recall those 31 flavors started life in Glendale in about 1945. It's now owned by the company that owns Dunkin' Donuts back east, though it still operates an ice cream test lab out in Burbank, I believe. Ah, here's a 2003 Time magazine story with a peek inside the lab.