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2. What deals you should be shopping at Walmart this week ... - AOL

   www.aol.com/lifestyle/what-deals-you-should-be...

   TCL 50" Class 4K Smart Google TV, $198 (originally $228): This smart set features 4K UHD resolution, so you can enjoy every teeny-tiny pixel in perfect definition, along with enhanced contrast and ...

3. These are the top 100 Black Friday deals, according to Walmart

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   Walmart is keeping track of its 100 most popular deals for Black Friday weekend, including TVs, AirPods, HP laptops, and more. ... TCL 65" Class S4 4K TV for $228 (save $150) Vizio 50" Class ...

4. 5 of the best early Black Friday TV deals at Walmart to shop ...

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   This 50-inch 4K smart TV has Roku built in, so you can also stream all of your favorite shows on whatever streaming service they're on. With a 4.8-star ratings reviewers say it's a great TV at a ...

5. LCD projector - Wikipedia

   en.wikipedia.org/wiki/LCD_projector

   This technology was employed in some sizes of rear-projection television consoles when there was a cost advantages in mid-size sets (40- to 50-inch diagonal). In 2014, 60-inch 1080p flat panel televisions were less costly than a projector with 1080p native resolution.

6. Rear-projection television - Wikipedia

   en.wikipedia.org/wiki/Rear-projection_television

   Modern color rear-projection television had become commercially available in the 1970s, [15] [16] [17] but at that time could not match the image sharpness of a direct-view CRT. Early 2000s CRT projection TV with 1080i HD ready capabilities has an RCA line level input for use of internal speakers as a center channel in a surround sound system.

7. Overhead projector - Wikipedia

   en.wikipedia.org/wiki/Overhead_projector

   Overhead projectors were used early on for police work with a cellophane roll over a 9-inch stage, allowing facial characteristics to be rolled across the stage. [ citation needed ] As the demand for projectors grew, Buhl Industries was founded in 1953, and became the leading US contributor for several optical refinements for the overhead ...