The Slovak national transmission company Towercom has begun trialing the SPI International channel FunBox 4K on its DVB-T network.
This follows shortly on from terrestrial Ultra HD tests it undertook during the Rio Olympics, which were the first ever in Slovakia.
The test involving FunBox 4K, on a VHF channel (6) from the Bratislava-Kamzik transmitter, will carry on until September 20.