Black Friday ads leaked for computer chains CompUSA and Staples show that both stores will have a select number of TV deals available during special limited-hour in-store sales events.

CompUSA is running a two-day pre-Thanksgiving sale this Friday and Saturday (Nov. 16 and 17), during which you can get a 50-inch Zenith plasma HDTV (Z50PX2D) for $1,000 and a 19-inch Envision LCD monitor for $140.

The store will open on Thanksgiving for just three hours, from 9:00 p.m. until midnight, then reopen at 5 a.m. on Friday morning. Specials include the 37-inch Olevia 537H LCD TV for $600; this model did very well in our tests. Other electronics deals include a $500 Athlon-based HP notebook PC with 2GB of RAM, a 22-inch Envision widescreen LCD PC monitor for $150, a $45 7-inch digital photo frame, a $60 7-inch portable DVD player, and a $148 Magellan Maestro 3100 GPS.

On Black Friday, TV deals from CompUSA include a 47-inch 1080p LCD TV from LG Electronics for $1,500 after a $500 instant savings. While we haven’t tested this model, the LG 47LC7DF, another 47-inch LG 1080p TV did very well. A 26-inch LG LCD TV will cost $600 after $150 instant savings, and Sharp’s 46-inch 1080p LC-46D64U LCD set will cost $1,700 after $800 instant savings. Samsung TV deals include the 50-inch HP-T5044 plasma for $1,300—$100 less than at Best Buy's or Circuit City's Black Friday sales. We haven’t tested this particular model, but Samsung plasma TVs have consistently done very well in our tests. Samsung’s 46-inch LN-T4661F, CR’s top-rated 1080p LCD TV, will be $2,000.

You’ll have to be an early bird to get a deal at Staples’ sale, which runs from 6:00 a.m. to 10:00 a.m. on Friday. If supplies last, you could walk away with an unspecified 42-inch LCD TV for $800, while a 32-inch model is $450. Both sets appear to be Envision models.

Other Staples deals include a $350 Intel-powered Compaq notebook computer with 1GB of RAM and a 17-inch Acer LCD monitor for $90.

—James K. Willcox