If the picture goes
September 17, 2012 at 5:30 pm
#7517
Aaron Ledger
If the picture goes completely black but still has audio then this is most likely something to do with the broadcast itself or the video card/driver or connection to the display. Typically, errors at the RF level or in the transport stream chain would never manifest in this fashion.
RF signal statistics are always useful to determine the state of the line and at least try to rule out anything that could obviously be happening. Of course, sometimes things do happen which are not so obvious which can make problems difficult to trace down.