> what techniques they are actually using
Before 2015 everyone had been accusing TVP of bias, but what funny enough opposition accused it of pro-gov bias while gov - of pro-opposition bias.
After 2015 it was like someone flipped a switch. Overnight TVP literally became a copy of Rossiya 1, with extremely aggressive language, black-and-white "us vs them" narratives, directed hate against specific people, outright fakes and 95% of the interviewed guests from the ruling party.