DVR Trouble

Last night we tried to record two shows at the same time but the DVR failed to record one of them. I don't think we set it up wrong. We watched one of the shows and maybe that messed it up. I had called Jake to make sure I programed the machine properly. I might have misunderstood his instructions. He will be home tonight so I will have to ask him to show me how it actually works. He is very good at all of that technical stuff.