The most watched show of this year's holiday TV season (1.7.-17.8.2025) was the series Policie Modrava (Nova). It was the only one of the main evening shows to attract more than one million viewers during the holidays. The next places were occupied by Televizní noviny, Počasí, Sportovní noviny (all Nova) and the rerun series Specialisté (Nova). This is according to official ATO-Nielsen data.
Also, the second half of the ranking of the most-watched holiday shows belonged to reruns, even of an earlier production date than those listed above. Included here were Malý pitaval z velkého města (Nova) and Hříšní lidé Města pražského (ČT), as well as the more recent Octopus (ČT).
Top 10 shows of the 2025 holiday season

July for ČT, August for Nova
Czech Television had the highest share of the TV market in July, despite a year-on-year decrease, in the universal audience group 15 . In 15-54 and 18-69, Nova was the strongest. In August, TV Nova was number one in all major audience categories.

Compared to the same period a year earlier, ČT's July-August performance was down less than four percentage points year-on-year (15 ), while both major commercial groups improved. TV Nova gained more, gaining almost two percentage points year-on-year (15 ), and even four percentage points in 15-54. Prima increased its share by more than one percentage point year-on-year in July-August (15 ).
The year-on-year comparison is mainly due to the decline of ČT Sport (last year's Euro football and the Paris Olympics). Of the individual ČT channels, ČT1, ČT2 and ČT24 improved year-on-year . Prima Krimi and CNN Prima News, as well as Television Seznam, also continued their significant growth.
Source: mediaguru.cz