Our five-year old Panasonic TH-42PX80BA plasma telly has, just this morning, started showing 'moving sparkly lines' (crap description, I apologise) and I was wondering if it's likely to be interference of some sort or the TV itself going faulty.
We have a Sky+HD box connected (though we don't subscribe to the HD service) via HDMI and the lines are visible both when viewing through the Sky box or when using the TVs own internal Freeview tuner.
We have a coax taken from the Sky box's RF2 output to two other TVs in the house (so that they can either use their own tuners or watch what the Sky box is showing) and the lines are *not* visible on either of those TVs, either via Sky or Freeview - only the main TV (which is in the living room) is affected.
The following two photos show the lines quite clearly. I paused the Sky box for clarity but the lines were still moving even with the picture on pause:
Any ideas? We're in Preston, Lancs - Granada Region, Winter Hill transmitter.