It's got a long way to overturn the PS2's and Nintendo DS's ~150m hauls, but Sony's PS4 reached the 100m sold mark this summer and has a good shot at ending up the third best-selling game console (currently the Game Boy, 120m sold) of all time.
The PlayStation 4 reached this milestone after just 5 years and 7 months, and less than 3 years after passing 50 million sales. Sony's PS4 sales have been consistently strong throughout this generation, with 19 million sold in 2017 and 17.8 million last year. Sony also revealed that digital download share has passed the 50 percent mark, meaning more people are now purchasing digital games than physical disc copies. Sony's next-generation PlayStation, most likely the PS5, now looks set to launch in fall 2020.
Next year is the year 8K TVs become "affordable", hence the big marketing push for a new generation of consoles based around 20XX-series NVidia GPUs.