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PDP-S37 is TV speaker model number, however, 4K TV has latest video technology and the plasma TV (might be PDP-5060HD or 4360HD) doesn't have capability to upscale the picture quality up to 4K because it doesn't have 4K display panel/ screen nor the internal hardware/ signal processor boards to achieve the task.
In simple words, it is not possible. I hope these info will help. If you have any additional questions, feel free to ask. If you're satisfied, please rate me a 5-star at the top of your page. Thank you.