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In 1990, after federalization of Czechoslovakia, ČST1 was renamed to F1, which is short for Federální okruh 1 (Federal Channel 1 in Czech).
This version with star was used in watershed from 10pm to 6am.
| ČT1 (HD) | ČT2 (HD) | ČT24 (HD) | ČT Sport (HD) | ČT:D (HD) | ČT Art (HD)