I suggest listening to some of the actual audio from the Apollo missions (13 is the most entertaining). Hundreds and hundreds of hours of it. To suggest they didn't see the earth as round is to suggest they literally acted all of that out. I used to be a "we never landed on the moon" conspiracy theorist until I actually listened to it. That was when I realized I was a dumbass.
But I guess if you don't believe satellite images and present day audio/video feed related to the earth being round, audio recordings from decades ago is pretty meaningless.
Apollo 13 audio with moments of silence cut out:
https://www.youtube.com/watch?v=VIiZyBbZ2Dk&list=PLC1yaZz2qeGqg8dvPgwcY9UFVlFMIjDmW 
