I need to design an application for Samsung Smart TV. So I wonder what should I know in terms of prerequisites. For example if I knew the standard resolution would be great. Any tips or sources?
The best place to go would be Samsung's developer portal.
For modern TVs the general answer is a standard of 1920x1080. Probably will scale anything 16x9 though.
Just as I thought, I started with 1920x1080 as a safe resolution, and since almost all modern wide-screen TVs are using the aspect-ratio of 16:9, there wouldn't be any problem of lowering the resolution.