It was 14 years ago when the Vikings played in Philly on that Tuesday night, because of a snowstorm. It was the first NFL game on a Tuesday in the modern era.
Now, the NFL has taken over every day of the week, including the important days, and rumor has it the SuperBowl will be pushed back to the end of February pretty soon.
It didn't really hit me until I was looking at KC's schedule this morning, that the NFL is basically everywhere now, all the time.