I'm doing Thanksgiving at my house this year. My motives are not entirely altruistic. I want lots of turkey leftovers. I bought a 21 lb turkey. That ought to supply adequate leftovers for me and also my leftover loving parents and 5 turkey-loving cats.
It's supposed to take 1 day to thaw for every 4 lbs of turkey weight. My fridge is cold, and the surface area/weight ratio for a big turkey is lower than that of a small one, so I'm guessing 6 days is more realistic. Thanksgiving is one week away. That turkey is going into the fridge tonight.