All other devices like mobile phones, Keyboards, Landline Phones has a indicator or marker in the number 5 button to easily identify for the visually challenged People.
There is a serious need to have an indicator in TV remotes, when compared with the sighted people the visually challenged people don’t watch TV, but “There is always a possibility for them to listen to news, conversation, or music on TV.”
Consider a scenario the user is watching the T.V during night hours and he want to change the channel to his favorite channel which is in channel number 55, he have a chance of pressing 85, 52, 25 for pressing 55.
So it is mandatory to have an indicator in the number 5 button in TV remotes.
Look at the size of the power button, it is of same size of the number buttons, they have changed only the color to green, there is a chance of pressing button 1 or instead of pressing 1 you may end up with pressing the Power button.
The size of the power button can be made larger when compared to number buttons.