I have had my hisense for about 6 months now, and it was a great tv until it started making clicking/cracking noise while on for about 10-20 minutes and continued long after the tv was off. I contacted hisense but received very little help and was going to send it to them for repairs but the warrenty states so many conditions such as if i didnt package it correctly my warranty would be voided, so I ended up not sending it. I opened the tv to check the capacitors but all they all look fine (no bulging or leaking). But I cant pinpoint where the noise is coming from. If anyone could give me an idea of the problem it would be much appreciated.