Forgive me, but I am rather new to Blu Ray viewing. I recently acquired a new TV, Blu Ray player, and TOS on Blu Ray. Before I had the player, I had been watching the series streamed from CBS. It would fill the entire screen. Now that I am watching the Blu Ray discs, I am noticing that the edges of the screen appear to be dark on each side. The only way I can get the screen to fill is to zoom, but then I start loosing the top/ bottom of the view. All I can determine is that the ratio when streamed was 16:9 and the Blu Rays appear to be 4:3, so I'm guessing that the screen edge darkness is normal?? If so, that's a bit disappointing but then again I do want to view the series the correct way.