I picked up a Dell Studio Hybrid to replace my aging Xbox 1 and I am trying to figure out the correct aspect ratio. My current tv is a 57" 1080i Projection TV. I am connected through the HDMI port. If I set the HTPC for 1280X720 and play back an HD Movie inside Media portal will it be 1080i or will it be at 720. I can set the resolution to 1080i if I need to. I will be using it as a Movie/TV/Emultator PC only.