The Nova Group achieved the highest shares in both full-day and prime-time broadcasting in all key audience groups 15 , 15-54 and 18-69 in September. In the broader 15 group, its full-day audience share was 28.45%. This is according to official ATO-Nielsen viewership data. At the same time, the new channel performed the best among the strong three in the all-day telecast year-on-year.
However, the margins in the universal Group 15 are not large within the strongest domestic top three. The Nova group has a share almost 0.6 percentage points higher than Czech Television (27.88%). The Prima group is only 0.4 percentage points behind Czech Television (27.46%). In the 15-54 and 18-69 audience groups, the gap between Nova and the number two, which is the Prima group in these target groups, is larger.
Nova also held prime time in September despite a year-on-year decline in share. Czech Television followed with a year-on-year higher share in prime-time in 15, while Prima was the number two in 15-54 and 18-69, and improved the most in prime-time in the 15 group of all the entities monitored. Prima also had a better result in prime-time in the 18-69 group than last September.
Televize Seznam continued to grow in September, moving over 2% in 15 and improving 0.44pts to 2.19% in its primetime 18-69 group. And Atmedia's representation of thematic stations also had a higher share in September.
TV station share (%), full day, September 2025
Share of TV stations (%), prime-time, September 2025
Source: ATO-Nielsen, TV Live ts0-3 as of Oct. 5, 2025Jumped by Prima Krimi
The stations with the highest year-on-year growth in September were Prima Krimi (0.7 ppts. to 4.3%), CNN Prima News (0.63 ppts. to 3.1%) and main channel Nova (0.6 ppts. to 18.9%). The top five channels with the highest year-on-year growth are also Nova Gold (0.57 pp. to 2.65%) and ČT Sport (0.54 pp. to 2.38%). All comparisons are for a target group of 15 .
September's Octopus
The most watched programme of the ninth month of this year is the new series of Oktopus (ČT1). The episode broadcast on 29 September had been seen by 1,4 million viewers as of 5 October (15+). Other episodes of Oktopus broadcast in September also took the top spots. This was followed by the episode of the miniseries Metoda Markovič Hojer (Nova) broadcast on 7 September with 1.17 million viewers.
Source: mediaguru.cz