There's no question about that. The problem is the erroneous (and illogical) conclusion that, "so your image quality will likely be better with that old set." There is good advice in the article, but there are some poor suggestions, as I and others observed.
This comment makes no sense at all:
I don't know they'd think a DVD would look worse a on high-resolution display device than on a low-resolution display. The recommendation to start with just two stereo speakers is a good budget recommendation. But then suggestion to go to four instead of...