Apple TV 4k (2021) Screen Cut Off

I just purchased an Apple TV 4K 2021 today and I’m very disappointed. When running the Zwift App, the screen is cut off around the edges. I tried adjusting the TV and the Apple TV video settings to no avail. I tried 2 other TVs and had the same results. When I cast Zwift from my iPhone 12 pro, the screen looks great and is not cut off. It seems to me that the problem is with the Zwift App. Any suggestions?

It seems it’s an overscan issue. I was able to turn off the overscan off on one of my TVs and Zwift looked great!! The problem now is the Panasonic TV (old) I use for Zwift has no option to turn off overscan!!!