Hey Legomasterweld, Badatgaming, and anyone else who is a master at command blocks. I just made Legomasterweld’s snowball TNT contraption (See his most recent post at http://www.legomasterweld.wordpress.com) and my thing i made did not work. So i made a video showing what I wrote down on the command blocks. Please tell me what is wrong.

also, sorry you cant hear my voice very well, my computer microphone is horrible.