In case you didn't notice
https://saraacarter.com/tax-payer-funded-pbs-pushes-radical-gender-ideology-90-of-the-time/
PBS promotes "radical gender ideology" 90% of the time (looking at LGBT vs traditional ideas).

The study looked at the PBS News Hour - 152 hours of coverage. About 200 minutes of gender coverage. So the numbers aren't big. But I expect that bias could be detected for many topics - not just LGBT ones - in many of the regular broadcasts.