Wagon Train

Would like to know why Wagon Train is never shown in reruns. It was one of my favorite westerns and I would love to see the episodes again. I remember watching it every week with my Dad (who also loved westerns), in fact, the first time my future husband came to my house, we were watching Wagon Train, and he watched it with us, even though he didn't really care for westerns! It's a wonder we made it together, but we have been married now for 43, almost 44 years. I really preferred Ward Bond as the wagon master, but of course, he died and they had to replace him. Flint McCullough was my favorite character. I thought he had the most exciting role, being the one who always went ahead to check things out for the rest of the wagon train.