Samsung full hd with pop up like ad UN40K5100

[swalear]

I have a Samsung hd tv UN40K5100. Out of now where a pop up/ ad, kind of like as screen saver showed up. It never goes a away just moves from left to the right of the screen. it says "NEW Samsung hd full wide color enhancer, full hd 1080P, connectshare movie, UN4OK100."
for some reason I thought it was an ad from my firestick but I completely restarted that to default settings and it still there. How do I get rid of it???

 

[americanaudiophile]

Sounds like your TV is in demo mode.
Not sure if these are the correct instructions for your set
https://www.samsung.com/us/support/answer/ANS00042190/
but you can search for other options online or explore all the menus on the TV.