We've all got them -- family myths that just won't die. Maybe your great-grandmother was an Indian princess or grandpa had his name changed at Ellis Island. Maybe you're a descendant of someone who sailed on the Mayflower or a cousin to a famous politicia n. Whatever your family story, join Crista Cowan as she dispels the ones that can't possibly be true and helps you know how to prove (or disprove) the rest.