Because Walmart likes to release its most jaw-dropping TV deals as a handful of pre-meditated doorbusters, more shoppers will be waiting in the wings for the clock to strike a certain time (rather than calmly perusing several pages of TV deals) — which means TVs selling out is more likely and time is of the essence.

LG's 55-inch B3 OLED TV normally retails for $1,199. As of Nov. 12, it's on sale for $798 as part of Walmart's early Black Friday sale.

Christmas tree sale: deals from $19 @ Walmart The holidays are fast approaching and if you're in the market for a new tree, now is the time to buy. As part of its early Black Friday sales, Walmart has artificial Christmas trees on sale from $19. The sale includes trees of all shapes and sizes.