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.

Many stores have special hours for Thanksgiving and Black Friday. Here's when major retailers like Best Buy, Target, JCPenney, Lowe's and more open.