I bought a brand new Roku tv today and went to connect my ps4. I've tried two different HDMI cords and input options. When connecting devices everything was fine, it went to restart my play station and for some reason every time I restart my ps, the tv shows a n"signal (is it on?)" screen. I continue the options to restart my ps again and it literally repeats these things over and over. I have no idea what to do.
Check your HDMI cords. I was having the same problem and I discovered that my stupid cat chewed it up.
Thanks for the post.
Have you tried using another HDMI port as well as switching out the HDMI cable used to connect the external device?
Please keep us posted what you find out.
Thanks,
Danny