TV Repair Questions? Ask a TV Technician for Answers ASAP
Check the cable connection, the input selection, and the resolution.
If you still need assistance, let me know:
Can you view anything else on the TV? (e.g. freeview)
Can you view any other HDMI devices on the TV? (e.g. DVD player)
What shows on the TV's display when you try to view the PS4?
Have you tried connecting to a different TV?