This is a very interesting interview and skepticism at its finest. If you don't feel like listening to it, but would still like to participate in this discussion, that's fine. It doesn't matter. If you think you have evidence of the earth being spherical, you're probably mistaken. I've become a fairly educated student of this issue and will most likely be capable of explaining why you're mistaken (and why you're stupid, also):
This is a picture:
This is a picture: