2020 or BT.2020, defines various aspects of ultra-high-definition television (UHDTV) with standard dynamic range (SDR) and wide color gamut (WCG), including picture resolutions, frame rates with progressive scan, bit depths, color primaries, RGB and luma-chroma color representations, chroma subsamplings, and an opto-electronic transfer function.

2020 was posted on the International Telecommunication Union (ITU) website on August 23, 2012, and two further editions have been published since then.

2020 color space using Barten's equation which had previously been used to determine the bit depth for digital cinema.

[6] The NHK is planning for their UHDTV system, Super Hi-Vision, to use 12 bits per sample RGB.

The standard says that for practical purposes, the following values of α and β can be used: While the Rec.

2020 transfer function can be used for encoding, it is expected that most productions will use a reference monitor that has an appearance of using equivalent of gamma 2.4 transfer function as defined in ITU-R BT.1886 and that the reference monitor will be evaluated under viewing conditions as defined in Rec.

YCbCr may be used when the top priority is compatibility with existing SDTV and HDTV operating practices.

[2] As in similar schemes, the chroma components in YCbCr are calculated as C′B = 0.5⋅(B′−Y′)/(1−KB) = (B'−Y′)/1.8814 and C′R = 0.5⋅(R′−Y′)/(1−KR) = (R′−Y′)/1.4746, and for digital representation the Y′, C′B, and C′R signals are scaled, offset by constants, and rounded to integers.

[12] The chroma components in YcCbcCrc are calculated from the Y′, B′, and R′ signals with equations that depend on the range of values of B′−Y′ and R′−Y′.

[22] HDMI 2.0 can transmit 12 bits per sample RGB at a resolution of 2160p and a frame rate of 24/25/30 fps or it can transmit 12 bits per sample 4:2:2/4:2:0 YCbCr at a resolution of 2160p and a frame rate of 50/60 fps.

2020 color space is supported by H.264/MPEG-4 AVC and H.265/High Efficiency Video Coding (HEVC).

[26] The proposal stated that this was to allow for improved video quality and to support the Rec.

[26] On September 11, 2013, ViXS Systems announced the XCode 6400 SoC which supports 4K resolution at 60 fps, the Main 10 profile of HEVC, and the Rec.

[27] On May 22, 2014, Nanosys announced that using a quantum dot enhancement film (QDEF) a current LCD TV was modified so that it could cover 91% of the Rec.

[28] On September 4, 2014, Canon Inc. released a firmware upgrade that added support for the Rec.

Depending on the disc size and physical configuration, the data rate can reach up to 128 Mbit/s.

[31] The first Ultra HD Blu-ray titles were officially released from four studios on March 1, 2016.

[33] On November 7, 2014, DivX developers announced that DivX265 version 1.4.21 had added support for the Main 10 profile of HEVC and the Rec.

[34] On December 22, 2014, Avid Technology released an update for Media Composer that added support for 4K resolution, the Rec.

[35][36] On January 6, 2015, the MHL Consortium announced the release of the superMHL specification which will support 8K resolution at 120 fps, 48-bit video, the Rec.

2020 color space, high dynamic range support, a 32-pin reversible superMHL connector, and power charging of up to 40 watts.

[41][42] On April 8, 2015, Canon Inc. announced the DP-V2410 4K display and EOS C300 Mark II camera with support for the Rec.

[43][44] On May 26, 2015, the NHK announced a 4K LCD with a laser diode backlight that covers 98% of the Rec.

[45][46] The NHK stated that at the time it was announced this 4K LCD has the widest color gamut of any display in the world.

[47] On June 17, 2015, Digital Projection International presented a 4K LED projector with support for the Rec.

[48] On January 4, 2016, the UHD Alliance announced their specifications for Ultra HD Premium which includes support for the Rec.

[50] On April 17, 2016, Sony presented a 55 in (140 cm) 4K OLED display with the support of Rec.

[51] On April 18, 2016, the Ultra HD Forum announced industry guidelines for UHD Phase A which includes support for the Rec.

JDI showcased an improvement of their 17.3" LCD 8k broadcast monitor that is powered by an RGB laser backlight system.

2100 is an ITU-R Recommendation released in July 2016 that defines high dynamic range (HDR) formats for both HDTV 1080p and 4K/8K UHDTV resolutions.