Cyber Monday has officially overtaken Black Friday as the champion of big, cheap TV deals. Get an 85-inch display for $548.

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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.