You can find this filter through Filters->Colors->Hot
It identifies and modifies pixels which might cause problem when displayed onto PAL or NTSC TV screen.
You have to select the TV mode: PAL or NTSC.
You can select:
Reduce Luminency
Reduce Saturation
Blacken: this will turn hot pixels to black.
With this option, work will be performed on a new layer instead of the image. This will give you peace of mind!
