What difference would having quad core versus dual core have on a TV?

The quad core is a faster processor and will help speed up the Smart features of the TV. All things being equal it should open menus and apps quicker with the quad core. If you plan on using the Smart features then this becomes a significant benefit.

does this have matte screen

The screen is semi-matte. It is glossier than the old matte screens but nothing like the mirror gloss of many other models and brands. This was a concern of mine and with this set it is not an issue.

did anybody lose their Netflix after updatING IT ..on the UN48H6400

Yes, Netflix does not work any longer on the Samsung 48" or 55". For some reason it simply does not work. If you figure out how to correct this issue please let me know.

Does the HDMI-EC (AnyNet) on this set power on a home theater/bluray when the TV is turned ON? (The manual says it can turn OFF HDMI-CEC devices.)

The TV will turn on when the Blu-Ray player is turned on. The other devices will turn off when the television is turned off. The logic is that by turning on the Blu-Ray player, the TV will need to be on to navigate and watch. But just because the TV is on doesn't mean the Blu-Ray player or Home Theater system is necessarily wanted each time. So as a power-saving feature, the entire lineup of devices won't turn on - but turning them on first will activate the television.So power on with the Blu-Ray/Home Theater system and power off with the TV - and the other devices will follow.Does that help explain?--Mr. S

Samsung Un55h6400 55 Inch 1080p 120hz 3d Smart Led Tv

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Description

Elevate Your Viewing Experience! 🎉

SMOOTH MOTION - Enjoy fluid action with a native 120Hz refresh rate and Clear Motion Rate of 480.
STUNNING VISUALS - Experience breathtaking 1080p resolution that brings your favorite shows to life.
VERSATILE INPUTS - Connect all your devices effortlessly with 4 HDMI and 3 USB ports.
SMART CONNECTIVITY - Seamlessly stream your favorite content with built-in Wi-Fi and access to popular apps like Netflix.
INTERACTIVE CONTROL - Navigate with ease using the Smart Touch Remote and voice control features.

The Samsung UN55H6400 is a 55-inch 1080p Smart LED TV that combines stunning visuals with advanced smart functionality. With a native 120Hz refresh rate and a sleek edge-lit design, this TV is perfect for movie nights and binge-watching sessions. It features multiple connectivity options, including 4 HDMI and 3 USB ports, and comes with a Smart Touch Remote for easy navigation. Enjoy a world of entertainment with built-in Wi-Fi and access to popular streaming services.

Specifications

ASIN	B00I94IPJC
Additional Features	Flat
Antenna Location	Home Viewing
Aspect Ratio	16:9
Audio Input	HDMI, USB
Base Depth	12.1 inches
Brand	Samsung
Built-In Media	Remote Control, Stand, TV
Color	Black
Connectivity Technology	Bluetooth, Ethernet, HDMI, IR, RF, USB, Wi-Fi
Connector Type	USB, RF, Wi-Fi, Bluetooth, Ethernet, IR, HDMI
Contrast Ratio	2600:1
Control Method	Touch
Controller Type	Remote Control, Touch Control, Voice Control
Customer Reviews	4.4 out of 5 stars 266 Reviews
Display Backlight Technology	LED
Display Refresh Rate in Hertz	120
Display Technology	LED
Hardware Interface	HDMI, USB
Internet Applications	Amazon Instant Video, netflix
Item Dimensions D x W x H	12.1"D x 48.9"W x 31.2"H
Item Weight	39.9 pounds
Manufacturer	Samsung Electronics
Mfr Part Number	UN55H6400
Model Name	UN55H6400
Model Number	UN55H6400
Model Series	H6400
Model Year	2014
Motion Enhancement Technology	Clear Motion Rate 480
Mounting Type	Table Mount
Number of Audio Channels	2
Number of Batteries	2 AA batteries required. (included)
Number of Items	1
Operating System	Tizen
Picture Quality Enhancement Technology	Micro Dimming
Refresh Rate	120
Remote Control Technology	Bluetooth
Remote Required Battery Quantity	2
Resolution	1080p
Screen Finish	flat
Screen Size	55 inches
Signal Format	Composite, Component, HDMI, USB
Size	55-Inch
Software Update Supported to Date	unknown
Speaker Description	Stereo speakers
Special Feature	Flat
Total Number of HDMI Ports	4
Total USB 3.0 Ports	3
Total Usb Ports	3
Tuner Type	ATSC
UPC	887276685984
Video Encoding	AVC
Warranty Type	Limited
Wireless Technology	Wi-Fi

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