I mean, there must be a couple of free channels that are available without having to order anything.
There is a common practice to unplug other end of cable in router located in the basement.
All or nothing. They do not transmit or amplify channels availible in the air.
So buy a small indoor antenna and if your tv has MPEG4 you will
find free digital channels aired by TVP.
en.wikipedia.org/wiki/Digital_television_in_Poland