Panasonic 55” Class, (54.6" Diag.) Pro 4K Ultra HD Smart TV 240hz-CX850 Series TC-55CX850U

  • Studio Master Drive- Helps 4K TV’s reproduce more detail and richer, more natural colors during dark scenes
  • An advanced LED Backlight Design, DCI 90-98% Color Space, which produces a wider color range
  • Firefox© OS to ensure ease for you to access smart apps and content
  • Voice Assistant Pro allowing to operate your TV just by talking to it with a remote control
  • Netflix© Recommended TV


The Spectrum of Colors Using a special LED LCD panel capable of producing a wider color range, more than 98% of DCI standards, allows the Studio Master drive to deliver a more subtle, naturally toned color palette which, unlike most LCD TVs, still looks authentic in any scene.
Light is The Source LCD TVs aren’t usually very bright and this is due to the types of light they use. Super Bright Panels solve this problem via the new panel-driving system plus a panel structure that lets light through more easily resulting in a highly efficient backlight system.
The Contrast of Darkness LCD TVs usually create pictures with just a few lights all running at the same brightness, making it hard to deliver convincing black colors and sufficient detail in dark areas. Local Dimming Pro provides individual control over a large array of LED lights behind the screen, greatly enhancing contrast.
Detailed, Crisp Images from Any Source Dealing with the advanced smart features and 4K picture technologies we now expect our 4K TV’s to require enormous processing power. Cue the Quad Core Pro engine. This cleverly separates the smart TV processing from the picture processing, so the smart elements run faster and smoother while pictures look cleaner, crisper and more refined – regardless of whether the content is streamed, cable broadcasts, DVD Blu-Ray, or 4K video.
Vivid Colors Even in Dazzling Scenes Dynamic Range Remaster ensures brightness data that is compressed while shooting is restored during playback without losing color data and the images continue to be brilliant and vivid.
Seamless, Automatic Content Recommendations XUMO Discovery, intuitive interface seamlessly and automatically recommends a wide variety of VOD content, such as NETFLIX©, Amazon and Instant Video, to the user.
Quick, Intuitive Access to Just the Content You Want Thanks to Firefox©, "my Home Screen" will be renewed, as a single gateway to all the broadcasting channels, apps and connected devices. A new Firefox© OS-based home screen makes it easy to access the content you want with intuitive operation.

SpecificationsExpand All

  • Picture Quality
    • Display
    • Panel Resolution
    • Bright Panel
    • Screen Resolution
    • Aspect Ratio
    • Panel Drive
    • Picture Mode
    • 4K Fine Remaster Engine
    • Dynamic Range Remaster
    • BDA HDR
    • Viewing Angle
    • Color Space
    • Studio Master Drive
    • Black Gradation Drive
    • Local Dimming
    • Adaptive Backlight Dimming
    • THX Certified Display
    • 4K Pure Direct
    • isf Mode
    • 3D
    • Sound Quality
    • Surround Mode
    • Speakers
    • Speaker Output
    • Sound Mode
  • Smart Features
    • my Home Screen
    • XUMO Discovery (US only)
    • Info Frame (Canada only)
    • my Stream
    • Voice Assistant
    • Direct Talk
    • Voice Guidance
    • Camera Integrated
    • On Screen Display Menu Languages
    • Unique Processing Engine
    • Wireless LAN Built-in
    • Panasonic TV Remote Apps
    • Swipe & Share
    • Smart Calibration
    • Internet Apps
    • Web Browser*1
    • Easy Mirroring
    • DLNA
    • Bluetooth*2
    • Media Player
    • Support Format
    • VIERA Link
    • Control4 Ready
  • Energy Data
    • Energy Star
    • Visible Screen Size (diagonal) (inches)
    • On mode Average Power Consumption
    • Standby Power Consumption
    • Power Supply
  • Terminal
    • Digital Tuner Reception
    • Analog Tuner
    • HDMI
    • HDMI (4K 60 Input with HDCP2.2)
    • Support Feature
    • USB
    • Ethernet
    • SD Card
    • Component Video Input shared with Composite
    • Digital Audio Output (Optical)
  • General
    • Included Accessory*3
    • Dimensions (W x H x D) (w/o stand)
    • Dimensions (W x H x D) (with stand)
    • Weight (w/o stand)
    • Weight (with stand)
    • VESA Compatible
    • Outer Boxed Unit (W x H x D)
    • Total Boxed Weight
  • Notes
    • UPC


TC-55CX850U is rated 4.9 out of 5 by 9.
Rated 4 out of 5 by from TC-55CX850U This TV has a great picture, after you set it to your specs, even the 3D is great. No blur that I can see, as far as picture, it great. But it freezes up on apps, have to turn off and turn back on TV. Just to turn on the app you want like Amazon. Push the button and nothing happens. Not all the time but it should not happen at all. My WiFi is 144gbps. As of the price at $3499.99 NO WAY, their are better TV out there for that price. But I paid $1499.99 on sale and for that price its great, and I love it. CONS- Freezes up on apps and the shipping took for ever, 20 days to get it. Panasonic, support sucks, but so do all of them. LG, Samsung, Sony, have them all and all of them the supports sucks. Once you buy their items they don't care, they tell you to return it to store or if you can't, too bad for you. Even under their 1 year warr. Buy a extended warr. Let me just say I love Panasonic, they have a good track record, with me.
Date published: 2015-12-30
Rated 5 out of 5 by from Great TV! No disappointments! Very satisfied..... Review for CX850 Series TC-55CX850U I purchased directly from Panasonic just before Thanksgiving with a great promotional discount. After reading several reviews for comparable models, I singled this one out as the best size for me with the high quality features i wanted. I do video editing and DVD production using systems with full color correction of the cameras and computer monitors. I wanted a model that would assure my clients their color and quality in the productions were very good. Because of the holiday the unit didn't arrive until Dec 6. I came by truck from California. There was no damage. The unit was very easy to unpack and setup. No firmware update was needed. So many features, it took me a while to check them all out even though I had a good idea about everything. The helps are good but brief. I did check out the website for more detailed information. The main remote is played out well and provides access to most features quickly. I have not become very attached to the smaller touch remote. That's because I love the iPhone TV Remote 2!. That is amazing! Much more capability that a hardware remote. It makes using the apps and browser so easy. I like that I can live stream content from my phone to the TV! Haven't had time to check out all the apps yet but have no doubts that my expectations will be met.
Date published: 2015-12-23
Rated 5 out of 5 by from Excellent replacement for my Panasonic Plasma I was very disappointed when Panasonic decided to stop producing their Plasma TV's. I have owned multiple Panasonic Plasma models over the past 10 years, with the most recent one being the VT50. The VT50 was by far the best TV I had ever owned up to now. I was very weary that a non-plasma TV would be able to satisfy my needs, especially in regards to the fast motion in many movies and video games. Few TV's I have owned or tested were able to compete with my VT50 when it came to motion smoothness. I am still putting it through its paces, but so far this TV has surpassed my expectations. The color and clarity is quite impressive, and the motion has been quite good. Thus far I am very satisfied with this unit.
Date published: 2015-12-12
Rated 5 out of 5 by from durable quality = Panasonic Many years ago I bought my first Panasonic product (NV SD 20EEE video casette receiver or my second TV Panasonic TX-21S1TCP ) - and I loved it . And I bought another similar product (Panasonic RX-70 VHS-C camera) and I loved it too - and so one... ...If I were a ritch man...:D
Date published: 2015-12-11
Rated 5 out of 5 by from Best Purchase Decision Ever! Years ago I owned a 55" Panasonic Plasma TV that was both heavy and hot and a picture that was fantastic. That comparison pales next to the TC CX850U system. DVD's look like Blu-ray and Blu-ray movies are like being there.The only concern was USB detection but was fixed by the firmware update. The Internet setup to do that was simple, and fast. This TV combined with Bose speakers, Onkyo receiver, and high end cables is fantastic! And it combines well with the T460 model 4K Blu-ray player. I recommend it. The player enables a HDMI (1) to TV and HDMI ARC (2) (set to audio only) to the receiver... which I highly recommend. Lastly Internet HD video is greatly improved on this system. Deep color, backlighting, and beautifully rendered pictures cannot be beat!!! Get it!!!
Date published: 2015-12-10
Rated 5 out of 5 by from Great TV This is a great TV, very sharp picture!!! Clarity and depth is fantastic.
Date published: 2015-11-20
Rated 5 out of 5 by from Great tv! Great tv for the price. A lot of tv's have a good picture but terrible sound, but this one has a great picture & sound. Love it!
Date published: 2015-11-18
Rated 5 out of 5 by from Excellent TV Excellent Contrast Ratio, extremely crisp and clear ...vibrant colors. I've never seen a better black in an LED backlit display. The Speakers, to me, sound a bit tinny, but definitely work without a receiver pass thru. Extremely good viewing angles. Oh, the conversion up is quite impressive...the picture quality just can't be beat. You won't be unhappy with this Panasonic.
Date published: 2015-11-18
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Firmware & Drivers FIRMWARE
Owner's Manuals
  • What support content is available for my product?

    Click on a link below that interests you the most:

    • Panasonic Community - Join our Community and participate in Discussions where you can learn more about our Products. You will also be able to get advice from other members and Product Experts, as well as documents, FAQ’s, tutorials, and updates.

    • Live Chat - Chat with a representative from 9am-9pm Monday-Friday and 10am-7pm Saturday/Sunday EST.

    • Email Contact - For email inquiries, send them to panasonicwebcasesf@us.panasonic.com, you will receive a response within 24-48 hours.

    • Parts/Accessories - Order parts and/or accessories from our supply chain, Encompass.

    • Service Locator - Locate the closest Authorized repair center to you for TVs, Microwaves, Vacuums, or Massage Chairs.

    • Service Request - If you need a product repaired and is NOT a TV, Microwave, Vacuum, or Massage Chair, you can use our Online Repair Request. There, you will be able to get a repair estimate, pay online, and track the repair status.
  • Why does my CX850 series TV not display High Dynamic Range (HDR) content?
    HDR content will only be displayed if an HDR capable device is connected to one of the HDR enabled HDMI ports of the TV using a HDMI 2.0 or higher HDMI cable. The apps of the TV will not display HDR content on the TV at this time. You must also make sure that your TV firmware has been updated with the HDR firmware (Part1 & 2) to add this ability to your TV.

    Require further assistance?

    Click here to visit the Panasonic Community to search for specific FAQs or tutorials for your product or ask questions directly to Panasonic or other customers.
  • Where can I find the High Dynamic Range (HDR) settings of my CX850 series TV?
    Follow these steps:

    1. Press the [MENU] button on the TV remote.
    2. Select the SETUP menu and press [OK].
    3. Select the HDMI menu and press [OK].
    4. Select the HDMI HDR setting menu and press [OK].
    5. Set HDMI1/2/3 to ON or OFF to enable or disable the HDR ability of that port.

    Note: HDR content will only be displayed if a HDR capable device is connected to one of the HDR enabled ports of the TV using a HDMI 2.0 or higher HDMI cable.

    Require further assistance?

    Click here to visit the Panasonic Community to search for specific FAQs or tutorials for your product or ask questions directly to Panasonic or other customers.
  • What version of HDMI cable is required for High Dynamic Range (HDR) content?
    HDMI 2.0 or higher is required to transmit HDR content.

    Require further assistance?

    Click here to visit the Panasonic Community to search for specific FAQs or tutorials for your product or ask questions directly to Panasonic or other customers.
  • How do I add the High Dynamic Range (HDR) feature to my CX850 series TV to allow HDR content to be displayed on my TV?
    You will need to update the firmware of your TV using HDR Firmware Update Part 1 & 2 available at www.panasonic.com/support. Once at the site enter your model number and navigate to firmware.

    Require further assistance?

    Click here to visit the Panasonic Community to search for specific FAQs or tutorials for your product or ask questions directly to Panasonic or other customers.
Energy Rating
  • View Energy Guide
  • ENERGY STAR Smart Too

    The Panasonic CX850 Series TV not only meets ENERGY STAR requirements, it exceeds them. For you, it means:

    • More energy savings
    • Lower utility bills
    • Leaving a smaller carbon footprint on the environment.
Consumer Product Support and Technical Assistance
Operating hours:
Mon-Fri 9am-9pm EST
Sat-Sun 10am-7pm EST
Panasonic USA