Stunning 4K UHD picture quality

High dynamic range (HDR) Technology

Thousands of streaming channels

Stream free TV, live news, sports, movies, and more

Easy Voice Control works with Siri, Alexa and Hey Google

Share videos, photos, and music from your Apple device using AirPlay

Simple, customizable home screen

Cord cutting made easy with smart features built in

Advanced digital TV tuner with Live TV Channel Guide

FullView edge-to-edge glass design

Private listening with the free Roku mobile app

Easy-to-use remote with shortcuts to popular channels

Search across top channels

Automatic software updates

Works seamlessly with Alto Sound Bars featuring Roku TV Ready

Dual-band WiFi & Ethernet port

4 HDMI inputs (1 eARC)

Stunning 4K UHD picture quality High dynamic range (HDR) Technology Thousands of streaming channels Stream free TV, live news, sports, movies, and more Easy Voice Control works with Siri, Alexa and Hey Google Share videos, photos, and music from your Apple device using AirPlay Simple, customizable home screen Cord cutting made easy with smart features built in Advanced digital TV tuner with Live TV Channel Guide FullView edge-to-edge glass design Private listening with the free Roku mobile app Easy-to-use remote with shortcuts to popular channels Search across top channels Automatic software updates Works seamlessly with Alto Sound Bars featuring Roku TV Ready Dual-band WiFi & Ethernet port 4 HDMI inputs (1 eARC)_Endless Entertainment It’s easy to watch what you love with all of your entertainment front and center—from streaming channels to a cable box, HDTV antenna, or even a game console. Your favorites are all on your home screen for easy access any time. Choose from thousands of streaming channels featuring hit movies, in-season TV, live news, kids and family entertainment, sports, and more._Entertainment at your Fingertips With America’s #1 streaming platform¹ built-in, you’ll enjoy an easy, lightning-fast experience and automatic updates so your TV gets even better over time.²_Choose How You Watch Watch your favorite entertainment however you choose, whether it’s through a streaming service, cable or satellite subscription or free over-the-air channels. The possibilities are endless._Powerful Control in your Hands Transform your smartphone into a Roku remote with voice control and the ability to browse or add new channels, and even enjoy TV audio on headphones connected to your mobile device for private listening. All with the free Roku mobile app.³_Let Your Voice Be Heard Use voice control to search for movies and TV shows, launch and change channels, or switch inputs, quickly. Your Roku TV works with Siri, Alexa, and Hey Google.⁴_TCL Series - S451_Model_×_Model_No Tooltip_55S451_Screen Size_×_Screen Size_No Tooltip_55_Viewable Display Size_×_Viewable Display Size_No Tooltip_54.6_Description_×_Description_No Tooltip_Smart Value HDR 4K TV_Features_Control Buttons_×_Control Buttons_No Tooltip_One Button_Multilingual On-Screen-Display_×_Multilingual On-Screen-Display_No Tooltip_English, Spanish, French_Closed Caption_×_Closed Caption_No Tooltip_Yes_Parental Control (V-Chip)_×_Parental Control (V-Chip)_No Tooltip_Yes_Accessible Menu System (CVAA)_×_Accessible Menu System (CVAA)_No Tooltip_Yes_Sleep Timer_×_Sleep Timer_No Tooltip_Yes_Easy Voice Control_×_Easy Voice Control_No Tooltip_Works with Siri, Alexa, and Hey Google_Live TV Pause from antenna (up to 30 minutes)_×_Live TV Pause from antenna (up to 30 minutes)_No Tooltip_Yes_Audio Quality_Output Power_×_Output Power_No Tooltip_10W + 10W_Premium Audio_×_Premium Audio_No Tooltip_Dolby Digital Plus_Connected TV Features_Smart Platform_×_Smart Platform_Roku TV_Tuner Type_×_Tuner Type_ATSC / NTSC / Clear QAM_Display_Panel Refresh_×_Panel Refresh_No Tooltip_60 Hz_Panel Resolution_×_Panel Resolution_No Tooltip_3840 x 2160_Resolution_×_Resolution_No Tooltip_UHD_Display Colors_×_Display Colors_No Tooltip_1.07 billion_High Dynamic Range Format_×_High Dynamic Range Format_No Tooltip_HDR10, HLG_Connections & Networking_HDMI_×_HDMI_No Tooltip_4 (1 eARC)_Composite Audio/Video Input_×_Composite Audio/Video Input_No Tooltip_1_Digital Optical Audio Output_×_Digital Optical Audio Output_No Tooltip_1_Headphone Jack_×_Headphone Jack_No Tooltip_1_RF Antenna Input_×_RF Antenna Input_No Tooltip_1_USB 2.0_×_USB 2.0_No Tooltip_1_USB File Format Compatibility_×_USB File Format Compatibility_No Tooltip_Video: MPEG4 Xvid, H.264, H.265, VC1, VP9_Audio: AAC,MP3, FLAC_Photo: JPEG, PNG, BMP_Wireless Connection_×_Wireless Connection_No Tooltip_802.11ac 2x2 Dual Band (support 2.4GHz & 5GHz)_Product & Package Information_Product Size (WxHxD) with Stand_×_Product Size (WxHxD) with Stand_No Tooltip_48.3 x 29.8 x 10.1_Product Size (WxHxD) without Stand_×_Product Size (WxHxD) without Stand_No Tooltip_48.3 x 28 x 3.2_Stand Separation Distance_×_Stand Separation Distance_No Tooltip_41.5_Product Weight with Stand (lbs)_×_Product Weight with Stand (lbs)_No Tooltip_22.5 lbs_Product Weight without Stand (lbs)_×_Product Weight without Stand (lbs)_No Tooltip_22 lbs_Package Size (WxHxD) (inches)_×_Package Size (WxHxD) (inches)_No Tooltip_55.1 x 34 x 5.3_Total Package Weight (lbs)_×_Total Package Weight (lbs)_No Tooltip_33.1 lbs_VESA Mounting Specifications_VESA Wall Mount Pattern_×_VESA Wall Mount Pattern_No Tooltip_200mm x 200mm_Screw Size_×_Screw Size_No Tooltip_M6 x 12_Base Stand Specifications_Screw Size (Qty)_×_Screw Size (Qty)_No Tooltip_M4 x 25 (4)_Accessories (Included)_Warranty Info / Quick Start Guide (QSG)_×_Warranty Info / Quick Start Guide (QSG)_1 / 1 English_Remote Control_×_Remote Control_RC280_Remote Control Battery_×_Remote Control Battery_Two AAA_Warranty_1 year limited warranty_×_1 year limited warranty