OK. OK. Let's just clear up a few things here. Besides the radio being powered by a combination of solar cells made from parts of the boat's hull and mangos and the baby monkeys playing in the bamboo spinning cage to keep the power going,
And what about the episode where Gilligan's mouth becomes a radio because something happens to his fillings.
which is quite common if you have your fillings arranged in the proper way to make a fractal antenna AND you keep you ear close to the ground to make best use of the saltwater path ground conductivity. Also,
There are no clothes to my knowledge that could withstand being worn day after day, week after week, month after month, year after year like that. And can you imagine the SMELL after a week with no deodorant?......
Of course not. Remember we only saw them once a week for 30 minutes. The rest of the time they ran around the island buck naked - out of necessity, mind you. (Now you know why Gilligan was so frustrated every time the skipper called him "little" buddy...)
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('scuse me. I have to go get another creative license. The one I have just expired...)