In reality shows, like say Master Chef, you see constant commentary by the contestants as they are cooking. They talk of errors and mistakes in present tense. During the cook, this is not possible because the cooking is timed. Right after the cooking, it's time for the judges to taste. When do they shoot the commentary portions and how are contestants giving accurate details about their cooking and the thoughts running through their minds?
This is applicable to all reality shows. Are the lines merely scripted or is there some technique they use to help contestants remember tiny details and express it in present tense? Looks like a very tough thing to do.