First have you checked to see that both remote controls are emitting a signal using your camera phone.
Switch the camera on the phone and point the signal end of the remote at the camera lens, press any button o
n the remote and if you see a light on screen the remote is fine.
When you point the remote(s) at the TV do you get a confirmation flash of the LED on the TV as it picks up the
the signal from the remote(s).
If the TVs LED does not respond to any buttons pressed on the remote(s) it would indicate that the Infra Red receiver board on the TV has failed. Unfortunately on such an old TV a repair would be financially unviable.
So do you fancy a new telly?
