Recordings change aspect ratio making it unwatchable

At times, recorded shows will change aspect ratio or zoom in the middle of a show. This causes an overscan issue where 1/2 of the image is off screen. Sometimes the video changes back to HD and sometimes not. If it does not switch back I usually have to delete the show as it is unwatchable. I have a 2 year old HDHomeRun and an AppleTV 4K but the problem was also apparent on my ATV4. Is this an HDHomeRun issue or Channels?
Thanks for any feedback.

Please upload an affected recording to Google Drive (or similar) and email me a link [email protected]