it is pretty much a thought, advice, praise, criticism or whatever on ever promo/match/segment of the night. It doesn't have to be a paragraph for each segment meaning the review doesn't have to be longer then the segment itself which I think is kind of over doing it.
but have a look at some of the top threads and see how they are reviewing it's mainly a sentence or two on the promo / match for the entire show instead of the best one and worst one of the night.