As a result, reports Rozhlas.cz, HBO content including movies, series and documentaries can now be received directly on Horizon DVR boxes.
They will also be made accessible on classic receivers and the Horizon Go platform, both mobile and online, within the next few days.
All UPC customers who either subscribe to HBO separately or opt for the Komplet offer can access the video library after the live launch.
Rozhlas.cz notes that UPC is the second major in the Czech Republic after O2 to make HBO OD available to its customers.
It also says the addition of HBO OD can be viewed as a form of compensation for the absence of Netflix on UPC Czech. The SVOD service has recently embarked on a massive localisation programme in the Czech Republic.