TCL

TCL 55R617 55-Inch 4K Ultra HD Roku Smart LED TV - 2018 Model

4.0 (1343 reviews)
4KHDMI 2.0HDR

Immersive 4K Entertainment with Smart Features The TCL 55R617 is a 55-inch 4K Ultra HD Roku Smart LED TV that delivers stunning picture quality and a seamless smart TV experience. With Dolby Vision HDR, Contrast Control Zone technology, and the Roku OS, it offers a premium entertainment experien...

$899.00*
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*Price sourced from Amazon.com. Last updated:Jun 27, 2026.Price and availability are subject to change.

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Overview

Immersive 4K Entertainment with Smart Features

The TCL 55R617 is a 55-inch 4K Ultra HD Roku Smart LED TV that delivers stunning picture quality and a seamless smart TV experience. With Dolby Vision HDR, Contrast Control Zone technology, and the Roku OS, it offers a premium entertainment experience.

Specifications:

  • Display Resolution: 4K Ultra HD (3840 x 2160)
  • HDMI Ports: 3 HDMI 2.0 w/HDCP 2.2 (1 ARC)
  • USB Ports: 1 USB 2.0
  • Contrast Control Zones: Yes
  • Clear Motion Index: 120Hz
  • Smart Functionality: Roku OS
  • Wireless Connectivity: Wi-Fi
  • Dimensions without stand: 48.5" W x 28.1" H x 2.9" D
  • Dimensions with stand: 48.5” W x 30.6” H x 10.7” D
  • Stand Separation Distance: 47.9”
  • TV weight without stand: 37.1 lbs

Key Features

Dimensions (w x H x D): TV without stand: 48.5" x 28.1" x 2.9", TV with stand: 48.5" x 30.9" x10.7"

Smart Functionality offers access to thousands of streaming channels featuring more than 500, 000 movies and TV episodes via Roku TV

Pairs 4K Ultra HD picture clarity with the contrast, color, and detail of Dolby Vision high dynamic range (HDR) for the most lifelike picture

LED backlighting with contrast control Zones produce Deep blacks and excellent picture quality

Inputs: 3 HDMI 2.0 with HDCP 2.2 (one with HDMI ARC), 1 USB (media player), RF, Composite, Headphone Jack, Optical audio Out, Ethernet

Specifications

Brand
TCL
Model
55R617
Screen Size
55-Inch
Resolution
4K Ultra HD
Smart TV Platform
Roku Smart LED TV
HDR Technology
Dolby Vision high dynamic range (HDR)
Backlighting
LED with contrast control Zones
HDMI Inputs
3 HDMI 2.0 with HDCP 2.2 (one with HDMI ARC)
USB Ports
1 (media player)
Other Inputs
RF, Composite
Audio Outputs
Headphone Jack, Optical audio Out
Network Connectivity
Ethernet
TV Depth without stand
2.9 inches
TV Width without stand
48.5 inches
TV Height without stand
28.1 inches
TV Depth with stand
10.7 inches
TV Width with stand
48.5 inches
TV Height with stand
30.9 inches

Pros & Cons

👍 Pros

  • Offers access to thousands of streaming channels and over 500,000 movies and TV episodes through Roku TV smart functionality.
  • Delivers 4K Ultra HD picture clarity combined with Dolby Vision HDR for lifelike picture quality, contrast, color, and detail.
  • Features LED backlighting with contrast control zones, producing deep blacks and overall excellent picture quality.
  • Equipped with multiple inputs including 3 HDMI 2.0 ports with HDCP 2.2, a USB media player, RF, Composite, Headphone Jack, Optical audio Out, and Ethernet.
  • Provides versatile connectivity options, including one HDMI port with ARC for simplified audio connections with sound systems.

👎 Cons

  • The 2.9-inch TV depth without stand is not exceptionally thin compared to some ultra-slim modern TV designs.
  • While offering 4K Ultra HD, the specific type or number of LED backlighting zones for contrast control is not detailed.
  • The model year is 2018, meaning it may lack some of the very latest smart TV features or panel technologies found in newer models.
  • The inclusion of a Composite input suggests catering to older devices, which might not be a feature valued by all users.
  • Specific smart features beyond Roku TV access (e.g., voice assistants, advanced smart home integration) are not explicitly mentioned.

Frequently Asked Questions

Without the stand, the TV measures 48.5" x 28.1" x 2.9" (W x H x D). With the stand, it measures 48.5" x 30.9" x 10.7" (W x H x D).
The Smart Functionality offers access to thousands of streaming channels, providing more than 500,000 movies and TV episodes through the integrated Roku TV platform.
It pairs 4K Ultra HD picture clarity with the contrast, color, and detail of Dolby Vision high dynamic range (HDR), aiming for a lifelike picture experience.
The television utilizes LED backlighting with contrast control zones, which are designed to produce deep blacks and contribute to overall excellent picture quality.
It includes 3 HDMI 2.0 with HDCP 2.2 (one supporting HDMI ARC), 1 USB for a media player, RF, Composite, a Headphone Jack, Optical audio Out, and Ethernet.