Wish list scheduling

I have a few wish list items that often result in programs that I do not want. So, every day or two I will look through the todo list on my iPad and find those I don't want and select do not record. However, I notice that the wishlist items often don't propagate to the todo list until a day or two before they are due to record. I was wondering why they don't almost immediately appear on the todo list and thus be shown 10 or more days into the future. Sometimes it seems that a program that I don't want will record seemingly the next day after I've reviewed the todo list.

Is there an explanation for this behavior? It's not a big thing, but it just piqued my curiosity.