Today we decided we had five minutes to spare, so we embarked on the "very simple" task after lunch. It's 6pm and we're about to replace the cover. The YouTube chap was working on a brand new oven, all the screws came out in seconds, whereas ours took a mixture of brute force, a lot of WD-40, a rubber band and buckets of sweat.
The best I can do is post a picture of the view from our kitchen window, with its lovely autumn colours: