Probably those are ads that appears on your TV, try to do this step to remove those. Press the Home button on the remote then scroll down to settings and press ok. Then, select channel setup and scroll down to info banner. Make sure to turn it off then it will not appear again.
Probably those are ads that appears on your TV, try to do this step to remove those. Press the Home button on the remote then scroll down to settings and press ok. Then, select channel setup and scroll down to info banner. Make sure to turn it off then it will not appear again.