My cousin, who is a WM manager, says that they will be adding an insert into their local paper ad on Thanksgiving morning. The managers at our Walmart aren't sure how they're going to do it yet, but said they're working together so both of our local stores will have the same specials and they can combine advertising costs.
I guess it will be ran differently at each individual WM.
That is not something that can really be done as described. Most small to medium city morning papers are actually printed before midnight and given to carriers in the very early am. and the inserts have to be ready to go long before that. Large metro papers begin printing even earler since they are distributed widely -- although they often have several editions that are printed through the night. That is why you often don't see evening sports scores. Papers for holidays such as Thanksgiving are, in many areas, printed a full day in advance. In our city the Thanksgiving paper is printed the afternoon before. FWIW this is also true of the Wed. BF monster paper. They print that up early on Tuesday because 1)there are so many ads there can be problems with the machines that do the inserts and, 2) people go ape if they don't get their BF ads. So, if anything goes wrong, they call in all employees to do emergency stuffing by hand.