Adding to the growing list of pre-Black Friday sales, Best Buy will hold an in-store-only event from 1 to 5 p.m. on Saturday, November 7. Among the promoted items: Samsung and Sony TVs, Apple products, and PlayStation 4 and Xbox One game console bundles.

After taking a look at the TV deals, though, our advice is to skip the event and wait for even better offers closer to Black Friday.

TVs are always a Black Friday draw, especially name-brand sets. And Best Buy boasts that you'll save $1,200 on the Sony Bravia XBR-65X900C model, a 65-inch smart UHD TV notable for its super-slim design. (See the details on the 55-inch version in our TV Ratings.)

But the claimed savings are compared to the TV's suggested retail price of $4,000, not it's current selling price. You can buy this set today at Best Buy, Amazon, and elsewhere for about $3,000. So you're really saving about $200—not bad, but nowhere near the retailer's claims.

The deal for the Samsung 60-inch UN60JS8000 UHD TV is a little harder to measure; the retailer claims it has trimmed $500 from the price tag and sweetened the offer by including a free wireless keyboard or a $100 discount on a curved 29-inch monitor valued at $600.

But we can't find this set on sale anywhere else, not even on Samsung's product pages. That makes us think it's a special "derivative" model made exclusively for Best Buy. The retailer says the TV regularly sells for $2,000, but based on the Sony pricing, we doubt it.

The closest match we can find for Best Buy's on-sale set—the 60-inch UN60JS7000 model—currently sells for $1,500 on Amazon, Crutchfield, and even Samsung's own website. So we strongly suspect that what you're really getting in the Samsung TV deal is either a free keyboard or a discount on the monitor.

It's also nearly impossible to evaluate Best Buy's other November 7 deals, too. For instance, the retailer says you can "save on any Beats by Dr. Dre Pill 2.0 Bluetooth speaker," but neglects to say how much.

We'll be tracking lots of Black Friday deals before the big day, so keep checking back. If you plan to start you're holiday shopping soon, use our Top 10 Black Friday shopping tips.