Why does my tv flicker when I light a lighter?
Answer:
I dont know maybe to sound from the lighter is on the same wavelength as your TV. When a lawnmower or weedeater is running too close to our house and a TV is on the screen gets lines through it until the machine is away. Also when we run our paper shredder or our salad shooter.
The lighter works by generating a pulse of high voltages which causes a spark to light the gas cooker or whatever ! An electrical spark radiates a radio frequency pulse which cover about all of the broadcast band which includes TV radio etc. Very early transmitters used a spark transmitter to signal with in fact I think that the Titanic SOS was sent using a spark transmitter !!
Cheers Pete
If your lighter uses a piezoelectric ignition system (that's what makes the spark), as most lighters have nowadays, then you have poor shielding somewhere in the TV or cabling and it's picking up the RFI from the ignitor. Try an older flint type lighter or matches. It won't hurt anything, so you could either live with it, or hire someone to track down the poor shielding issue. If it's a Philips/Magnavox, don't bother, They're poorly shielded and that's just the nature of the beast.
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