Wonder if anyone here has seen this before. I have an older 32" flat screen CRT Sony Wega Trinitron, the one with simulated surround sound from the 2 front speakers, weighs about 200lbs etc. (probably 8 yrs old). It won't allow me to clear the old channel labels that we set years ago, AND the internal clock will not stay set, it's always reset to Sun 12:00 AM. Is this fixable by a battery or cmos chip that can be replaced?