Can HDTVs with built-in mediaplayers play MKV s?

Update: im not in front of the device at the moment. But i think it is a samsung. Im asking those who own one. I am currently googling it as well. I appreciate the info from anyone who might know
Update 2: Dave's response was closest to the answer.....somehow :)
I actually found the cause and a solution for HDTVs not playing MKVs. I added it as an Answer for those who want some extra knowledge. Thank you for your responses. Have a good one
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