If you'd like to change the station on your PBS app on your Android TV, please follow the below instructions.
Open the PBS app and click to the left to open the left-side navigation menu.
Select the Profile option at the bottom.
Within the Profile menu, select Change Station.
A box will appear at the top of your screen asking you to enter your zip code to search for nearby stations. Press the select button on your remote to select this box and bring up an onscreen number pad.
Enter your zip code or the zip code of the station you would like to be localized to.
A list of stations for that zip code will appear. Select the desired station.