Just a general thing really.I repaired a Panasonic TV many months ago now,been working fine,most likely a plasma with damaged y sus. Any way the guy phoned yesterday to say,got another fault,R/C works fine during the day but stops working after dark,green light flashes but no function.
Odd thing,that but I do remember some time back Virgin boxes not working mainly after dark,cured by virgin fitting a filter before the R/C RX,caused by early low energy bulbs giving off light rays that upset the RX unit.So I asked have you changed any lamps,moved a lamp position in the room & to have a play & see what happens.
Customer phoned back today,fault cured,turned out to be a small security camera that sits behind the TV looking out into room,with night vision infra red LED's. His wife had cleaned the TV & stand & moved the Cameras position to behind TV but under where the R/C RX unit is fitted in TV.Moved it back problem solved.
Sadly not put any money in my pocket though.LOL