Successful trial of 4K over DVB-T2 HEVC for TVP during Euro 2020 – Marcin Klepacki

MARCIN KLEPACKI (TELEWIZJA POLSKA)

At the beginning of June 2021, Telewizja Polska launched the TVP 4K channel in UHD quality, showing the UEFA European Football Championship, Euro 2020. The channel was broadcast for the entire duration of the tournament and an additional month thereafter, from 11 June to 11 August 2021. It allowed viewers with TV sets with a UHD/4K screen to watch all matches played during the championship (live broadcasts and rebroadcasts), pre- and post-game shows, daily reports on the Polish national team, and other broadcasts related to Euro 2020.

TVP 4K was broadcast as part of the wider test broadcasts of the new DVB-T2/HEVC digital terrestrial television (DTT) broadcasting system, with the network covering 90% of the Polish population. The TVP 4K broadcast of UEFA Euro 2020 was time-limited and experimental – its aim was to technologically prepare Telewizja Polska and its viewers for the upcoming switch to the new DTT broadcasting system.

UNIVERSAL AVAILABILITY The availability of TVP 4K on terrestrial television was a breakthrough and an unprecedented event, as it was the first television channel in UHD quality offering premium content to be made available universally and free of charge to all viewers with TV sets capable of receiving DVB-T2/HEVC broadcasts or equipped with an additional DVB-T2/ HEVC decoder.

The channel was also distributed via other digital platforms that could be used to receive UHD signals (direct-to-home satellite, IPTV and cable TV).

All matches shown on TVP 4K were broadcast at a resolution of 3840x2160 pixels, with progressive scanning at 50 frames per second. High dynamic range was also offered, using the HLG (hybrid log gamma) system, and object-based audio was delivered using Dolby Atmos.

The DVB-T2/HEVC test multiplex managed by Telewizja Polska has a bit rate of 36 Mbps. The base scenario for the TVP 4K channel is broadcasting using the HEVC codec, with the constant bit rate set to 25 Mbps. However, tests were also undertaken using the variable bit rate approach combined with statistical multiplexing, with priority set for the TVP 4K channel. As part of the test multiplex, three other Telewizja Polska channels were broadcast simultaneously in HD quality and one in SD quality during the broadcasting period of TVP 4K.

In addition, the HbbTV Euro 2020 application was made available to viewers as part of the TVP 4K channel, providing access to match statistics (also in the form of a widget), on-demand audiovisual materials, including match highlights, goals and interviews, and live broadcasts of matches using a 180-degree camera.

VIEWING FIGURES TVP 4K was launched on Friday 11 June at 18:00. On its first day, it had an average minute rating of 6.2k viewers and a share of 0.12% among all viewers 4+; in the commercial target audience of 16–49 years, it had 1.8k viewers and a 0.1% share. On the following day, its shares rose to 0.3% among all viewers 4+ and 0.34% among viewers 16–49. The channel’s peak minute rating that day was 227k viewers 4+.

Day 3 gave the channel its highest reach to date, with nearly 1.5 million viewers 4+ watching TVP 4K for at least one minute. Monday 14 June 2021 brought another record, driven by the live transmission

Marcin Klepacki is Director of the Distribution Bureau at Telewizja Polska, the national broadcaster in Poland. He has been with TVP for four years and previously worked for Netia, SAS Institute and T-Mobile Poland, among others.