The only thing you have to watch out for here is that more of the 120 volt LED light bulbs are using LED chips that have two elements in series on the same chip and drop over 6 volts. The constant current power supply that drives them in the TV is smart and will detect the change, going into fault mode. To avoid the possibility of taking apart the wrong light bulb, you could buy a 12 volt LED light bulb with an Edison base sold in marine electronics stores or on eBay. The reason to look for one with an Edison base is they are larger than most of the automotive 12 volt bulbs and are likely to have the right size chip inside.
They are surface soldered to an aluminum backing plate for heat transfer. Removing and installing chips should be done with a heat gun but a small torch can be used to heat the underside if you're careful to not overheat it. Clean and re-tin the solder pads on the top of the metal strip or plate. Carefully position the replacement LED over the solder pads in the right polarity and heat the underside until the tinned solder under it melts and the chip drops flat on the metal strip. Some TV's like Sharp are smart enough to remember the fault after the repair and will not start until you force them into service mode and clear the fault. Google that procedure for your model.
Apparently, he had an SDR setup, and was running an Icom 7300 (is that right? Icom did make a 7300?)
They usually are . More than a few of us have the afflictionIt's been a great radio.