Flutter Android tv app issues

I am looking for a skilled and experienced Flutter developer to help me address
1.
video scaling problem. It uses better player and works fine on mobile devices and tv emulator but on actual TV it shows on small screen and rest of screen stays green on video playing.
2.
It uses external app for embedded videos, i don't want to use external player it should play inside the app, and do not expose the embedded links

- Expertise in Flutter development
- Strong understanding of UI/UX design principles
- Experience with Material design
- Ability to troubleshoot and address visual issues in Android TV apps

If you have the skills and experience I am looking for, please submit a proposal detailing your experience and approach to addressing UI/UX issues in Flutter Android TV apps. I look forward to hearing from you!
I am attaching emulator screen shot. I will attach tv screenshot afterwards