I think he is looking for something that requires almost no extra time to prepare or set up. Simple, but would do the same job as fancy software.
RedNu is looking at the laptop screen as he commentates on each game during his show. Well he is recording the show with that laptop too right? Now what if he made it simple by recording the show with a phone or another laptop. Then on the original laptop he can have as many highlight plays open and ready as he wants in separate tabs or windows. Another window can be open on the main league homepage so he can easily go through each score with us.
So when he shows a highlight, it can be brought up on full screen view on the laptop and Mrs. Red or he himself even can hold the phone close to laptop for a highlight....then focus can be brought back to him when he is not playing a highlight. Yes it is very simple, crude, but very effective and would do the same job. The important thing here is it would take almost no extra time e to prepare.