OK, let's see here... You have component video from the 950 to the TV and HDMI from the OPPO 983H to the TV, with optical from the 983H to the 950 for audio. To get upscaled video from the 983H, you need to change the TV's input to that HDMI connection and make sure the 983H's video output is set to the desired resolution (stop disc playback so you only see the OPPO splash screen and press the "HDMI" button until it indicates the desired resolution). Also remember that updating the 983H's firmware resets the player to the defaults, including the output resolution.
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gonk
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