Quoted from rosh:I have troubleshot and fixed dishwashers, washing machines, clothes dryers and TVs based on youtube videos. More often than not, it has been a $10 to $25 part and an hour of time to save two, three or even four hundred dollars. While there are some things I won't attempt, it has been surprising how easy it has been to troubleshoot and fix some of these issues.
Same here. I've repaired a few flat screen TVs. Often for me it's the power supply that simply needs replaced. If you can replace a computer component, you can replace a board on a modern TV.