I Can’t Make The Picture On My TV Fit

Without chopping off the edges. I have two different TV’s this is happening too. Two different models having the same problem. My living room tv is an 85” Sony that is about a year old. The tv on my patio is a 50” Hisense. It is about a year and a half old and Both are having the same issue. I think it must be a setting on my firestick because I have tried everything on each of the tv’s to change the aspect ratio to fit. I tried every setting on each tv and it didn’t help. That’s why I think it’s something in the firestick settings that is causing it. This started happening a couple of months ago. I have also tried different settings on the fire stick but that hasn’t worked either. I’m tired of watching tv where I can’t read what the writing says because the picture is too big. I even restored the Sony tv to its factory settings. That didn’t help either. Anyone have any other suggestions I could try

Edited to say I figured out that the problem I was having was caused by the Cinema Apk. I didn’t see anything in their settings that would change the aspect ratio. I tried another apk and the picture is back to normal