Hidden Genders in Nat GEO

Was watching the documentary about the Hidden genders on National Geographic Channel. It was about a group of people who converted themselves from Males to Females. In this documentary, they have narrated that Hinduism supports this type of transsexual or the third sex and it is a part of the religion because Lord Shiva is depicted as half Man and Half woman. The concept of Lord Shiva depicted as a Half man and Half woman has a different meaning from what I understand.

Will Nat Geo rectify this error.