Hi there! I’m sorry to hear the PBS app on your Apple TV has been acting up. Let's see if we can sort this out together.

Since this issue has been persisting for several months, it might help to try some basic troubleshooting steps. Here’s what I recommend:

1. Power Cycle the Apple TV: This is a simple method that can often fix playback glitches. Unplug your Apple TV from the power source. Wait for about a minute, then plug it back in. This can help refresh the system and clear minor issues.

2. Reinstall the PBS App:
- Go to the App Store on your Apple TV.
- Find the PBS app and delete it.
- After it’s deleted, unplug the Apple TV again for a couple of minutes, then plug it back in.
- Re-download the PBS app from the App Store and try using it again.

3. Network Check: Sometimes network issues can cause glitches. Try rebooting your router by unplugging it, waiting for about 30 seconds, and then plugging it back in.

4. Lower Streaming Quality: If you're experiencing buffering or glitches during streaming, you might want to check if you can lower the streaming quality within the app to lessen the demand on your network.

If these steps don’t resolve the issue, please let me know, and we can look into further options like checking for updates or any known service outages. Are you satisfied with the solution I provided?