Regarding the Royles it's another short series that didn't overstay its welcome, apart from a few Christmas specials, and thus every episode is memorable. I think it was really top rated at the time too. I visited England during those years and there were Jim Royle dolls in shops, stuff like that. It was very popular.I just watched a small clip from the series. Jim acts brilliantly insane! I have to see more of this.
Your writing piqued my interest to take a look at the book. I can appreciate how the author divided the Western and Japanese with different coloring, but that Japanese section looked pretty slim as you mentioned. Pictures look crisp, something you don't always see with these types of books.
One of the creators, who played Jim's daughter Denise in the show as well, passed away I would have said a couple of years ago but apparently already in 2016 (time flies), so it had a small revival then, rerunning the shows on television.
As for the Dreamcast book, it excels because of its high production values. The author detailed the way he took screenshots, which are from original hardware but through a "special RGB 480p SCART cable from a site called Retro Gaming Cables: this cable isn't supported by normal TVs but it is supported by some video upscaling devices, like the RetroTink 5X (which was also used)" - This might to some extent explain the fine quality of the screens.
The trouble of course is with our memories. When I think of the Dreamcast I think of 15 or 20 great, memorable games. Even if you give those games a full page, and everything else just a quarter of a page, it's still going to be loaded with (yet another) Acclaim, Midway or Infogrames polygonal platformer or racing game. We obviously tend to forget that however good a console or computer's library is, the overwhelming majority is usually mediocre.
That's not really the book's fault of course, it is what it is.
I have a few other similar books on other consoles and computers, none from the same author, and I'd say this is one of the nicest.