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.

DSW: Take 30% off in-store and online through Black Friday. Dyson: Its on-sale items include an air purifier for $800 ($300 off), Hot+Cool Jet Focus fan for $300 ($170 off) and cordless vacuums for $250 ($250 off). Gap: It's offering steep discounts on clothing with 40–60% off popular styles.

Find great deals on top-rated products this year at the largest retailer in the worldThe retailer is featuring Black Friday deals on products from Apple, Keurig, Samsung, and more.By Samantha B.