Pazos,
Many (most? all?) Premium Collection stores have e-mail lists that are run by the local buyer at the store. I am on distribution lists from two different stores and each sent a heads up regarding the sale, one beforehand and one shortly after it started. Signing up is typically a manual process done in person at each store. Just ask to talk to the Premium Wine Buyer at the store and they'll usually hook you up.
I also somehow got onto a list from the LCB in Harrisburg, not exactly sure how or can't remember, and they too sent a notification shortly after the sale had begun. There is a link at the bottom of each message they send to unsubscribe, but nothing for how to sign up. Do you have an account on
www.pawineandspirits.com ? I do, so maybe that's where it comes from.
Of course, I didn't actually
read those e-mails until after the wines mentioned above were already gone!
Mark