Hello I tried to the letter as above. But I had gone to a shop and he got it switched on with the controller. Soon as I got home it would not work after following above my ps4 is useless at present.
1. Turn off PS4 completely, not rest mode.
2. Turn off TV.
3. Unplug PS4 from power source
4. Unplug TV from power source.
5. Count to 30
6. Plug in TV
7. Plug in PS4
8. Power up PS4 using game controller
TV should go on automatically once PS4 powers up. Problem solved?