So, I'm not suggesting the PC-Engine and PS4 consoles look anything alike, that wasn't the point.
It's just that the idea of the PS4 Pro, what it is, reminds me of what the SuperGrafx was, to some extent -- a beefed up version of the original console, with twice the graphics processing power and the same CPU.
The TurboDuo series, the PC Engine Shuttle, PC Engine GT and PC Engine LT, are not analogous to Sony's PS Vita, PlayStation TV, PSVR, or PS3.