Its the bedroom TV, about 4 years old and the remote is giving issues. The symptoms seem to suggest it seems to go into a sleep mode, from which it is reluctant to wake fully from.
Press the power button and its transmit warning light gives a brief flicker, press its light button (it has a button to light up the remote's main buttons) and it will light up and stay on until it times out, press the TV button (it can operate other Samsung equipment) and it will give a brief flicker. Persist with button pressing and it will appear to fully wake up and work normally and continue to work normally for the rest of the viewing session. Next evening, I have to go through a similar process. I've replaced the batteries and the TV /remote is little used. Normal is pressing the power button, the remote flashes its LED continuously until the button is released and the TV's own LED flashes to indicate it is receiving the command.
Not something I have come across before, is there something I'm missing please?