This claim is somewhat true. There is a scientific phenomenon known as the Mpemba effect, and it has been studied by many scientists. Phys.org has an article about this, which is what I used to conduct my research. While hot water can freeze faster than cold water, it is only in certain situations. https://phys.org/news/2010-03-mpemba-effect-hot-faster-cold.html
According to the article: "The problem is that the effect does not always appear, and cold water often freezes faster than hot water. Radiation safety officer with the State University of New York, James Brownridge, has been studying the effect in his spare time for the last decade, carrying out hundreds of experiments, and now says he has evidence that supercooling is involved."
So, the claim from Savit Interactive is only true is specific conditions.