Thanksgiving and Black Friday are only a week away, and retail giants like Walmart, Amazon, Best Buy, and Target have released their lineup of great holiday discounts. For those who wish to upgrade their home entertainment system, here are some of the best television deals for the upcoming Black Friday sale.

While Best Buy also offers discounts on its online store, the best deals are generally found in-store only and they are usually available in limited quantities. These include the Toshiba 55-inch LED 4K Ultra HD Chromecast TV, which will be offered for only $279.99.

Samsung's 50-inch LED 4K Ultra HD Smart TV will sell for $399.99, while the 65-inch LED 4K Ultra HDTV will just be $749.99. In what may be the best deal of Black Friday, Best Buy is offering the Sharp 50-inch LED 4K Ultra High Definition Smart Roku TV for only $179.99.

At Target, some of the door busters include the Polaroid 32-inch TV, which will be sold for only $89.99, and the Element 40-inch Smart LED TV at only $179.99. LG's 55-inch Ultra High Definition Smart LED TV, on the other hand, will be sold for $499.99.

Walmart's in-store sale will begin at 6 p.m. on Thanksgiving Day. Some of the televisions included in its lineup of discounted appliances are the Vizio 43-inch Full Array LED TV, which will be sold for $198, and three Samsung TVs, a 32-inch Smart LED TV for $158, a 40-inch 4K Smart LED TV for $328, and a 58-inch 4K Smart LED TV for $598.

Amazon, meanwhile, has chosen not to reveal the brands of the TVs and instead just released the prices of its generic deals. The store will sell a 32-inch 720p TV for only $69.99, a 49-inch 4K TV for $159.99, and a premium brand 40-inch smart TV for $279.99.

Aside from these, shoppers should also be on the lookout for more deals that retailers may announce on the day of the sale itself.