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Will the Roku Ultra LT downgrade 4k/HDR to 1080i?

I have a Roku Ultra LT on a 1080i HD TV.

Will the Roku downgrade/transcode 4k/4k HDR files so that they are watchable on my 1080i TV?

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Re: Will the Roku Ultra LT downgrade 4k/HDR to 1080i?

I don't have an Ultra LT, but I do have a 2020 Ultra.  I tried to play a 4k video with the Ultra connected to my 1080p TV and I got a copy protection error.  I could briefly hear the audio.  No Roku has ever supported 1080i in the past and I don't believe that's changed, so you'd have to use 720p.  I just got an onn 4k player from Walmart for $20 and it would play the 4k video on my 1080p TV.  I don't know if it supports 1080i.

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