Received a flyer in the mail. Quite a few different TVs but this one stood out because I'm a gamer and the size with the curved screen and HDR is perfect.Appears to have been a previous frontpage deal at $525 and $450.
Flyer says that the sale starts at 12:01 EST online and at 7am in the store.
Link to the current page ($648 now):
Link to the advertisement: