This set developed an issue that finally got so bad it prompted my attention to repair it.
Set Brand - Sylvania
Set model - LCS320SS8
Problem - Set powers up, runs then shuts down after an hour or two.
PCB # - A71F0MUT - AC mains divider / backlight Inverter board
Parts replaced:
R522 - 18K @ 2w
R524 - 18K @ 2w
C510 - .022uF @ 100v
C520 - .022uF @ 100v
C556 - .01uF @ 100v
C1015 - 470uF @ 35v
Final Synopsis - After running the set for 8 hours it is still working fine, The resistors in positions R522 & R524 are warm but not so much to discolor or change value.