Watching TVP and TVP info these days, I honestly don't see any particularly biased narrative
You don't see it because you're not looking for it. The blatant way that TVP ignored the downgrading of Poland's credit rating was a great example, but there are many more in a daily basis.
Lis also earnt a huge amount of money for TVP in advertising fees, which more than paid for his salary. TVP lost those advertising contracts when Lis left.
last and even Robert Janowski, the seemingly innocent presenter of 'Jaka to Melodia?'
Why are you so surprised? They bring in huge money in advertising, hence they command high salaries.
Most debates on TVP info have people from all sides of the political and social spectrum in them.
...as they did before the election.