Lately, my Samsung LNT4661 TV has been making pinging and tinging noises whenever i turn it on or off. No, it's not the startup melody, it's a metallic tinging noise, as if it were expanding or contracting inside.
Is this normal? I remember some older CRT sets doing similar things, creaks and pings would always happen whenever a set got turned on, or after you'd turn it off.
However, I've owned a few LCD's and this is the first time I've noticed it.