Hello Wutsayhe,
I'm sorry to hear this! If you go within the youtube application, you should be able to go through the settings and you'll be able to see what phones/devices are paired to the television and you should be able to delete them out, or in a sense "unpair them".
Hope this helps!
--HD Tech
i have a 58 inch samsung smart tv and my nephew has a 50 inch samsung smart tv. he keeps using his tablet or phones youtube app to connect to my tv and plays rap music. so while im playing a game or watching tv it automatically switches to the youtube app on my tv. i tell him not to click on my tv but he does it anyway. anyway i can disable him from connecting to my tv? everything else about this tv is good except for that.

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