Just to clarify--the Oppo Blue Ray players will upsample to 4K/UHD only if you have a 4K/UHD TV. It won't upsample to your regular 1080P HDTV (Panasonic plasma). A review says trying to do so may "lock up" the player.
Panasonic got out of the plasma business because they (and probably everyone else) can't make a plasma TV that does UHD/4k, so all 4k TV's will be LCD/LED or OLED.
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