videos on video.aktualne.cz aren't played, no idea how to make it work without allowing ads. The current filters are probably in Easylist Czech.
Like this one:
Hi, I've found some unblocked trackers loading on video.aktualne.cz. They are mostly Czech, but as there is no EasyPrivacy Czech, I guess it should be added to the main EasyPrivacy list?
404 the requested page does not exist http://i.imgur.com/wa0QOBm.png
... give more details, browser? adblocker? filter lists? screenshot... or an adblock plus issue report.
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Sorry. Just click any video on https://video.aktualne.cz/.
The videos don't play when using EasyList Czech and Slovak nor EasyList in Firefox ABP, and multiple problems from other blockers can be found on social sites.
See here: http://imgur.com/a/dXdCr
Adblock is detected and cookies named ADB and ADB.key are set on aktualne.cz, plus unblockable ads are shown after setting this cookie. Generichide and genericblock does not help.