It was quite some time already that I heard from repair tech that one could use an infrared thermometer to detect components that heats up and give problem-mostly semiconductors. This means that one could point the gun to the suspected component and monitor the temperature. If the temperature keeps on rising then either the component or the corresponding components have problem. Our fingers have limitation in detecting the heat and it is not advisable to place our fingers in high voltage section. With this thermometer you can check on any component temperature even while the equipment is working. Just point the laser beam to the component and read from the bright LCD display. You can check on the CRT/TV HOT easily with this meter.
Since I just got this Victor Infrared thermometer today I have not fully tested this meter yet. It came with a manual (in Chinese) and without the 9 volt battery. You can select to enable /disable the laser beam. You also could select either Celsius or Fahrenheit. Below are the photos of the meter: