Your channel design is nice, so is the trailer, you visibly put quite some effort into it.
From what I saw, your videos are slightly stretched. To prevent that from happening, I would recommend you to play in windowed mode, there are many tools out there to help you adjusting the size (1280x720 would be optimal). Also, you might want to edit your videos into two shorter ones if they are longer than 30 minutes, as your viewers might get distracted or don't have enough time to watch the whole episode at once. Your commentary itself is fine, even though you don't really need to explain every single thing you're doing.
