Sony has shifted thier games department around a lot over the years. It wasn't until maybe a year or two ago that they moved into a wholly seperate division. Before then, it had always included otehr products and services.
Nah mate, game had it's wholly separate segment from it's inception til the end of Fiscal Year 2008. It was then included in a segment called "Consumer Products & Devices" for Fiscal Years 2009-2011, before it got it's own division again in 2012 (and we also got results from the game segment for FY2011), which, at the start of Fiscal Year 2014 was renamed "Game & Network Services". I'm guessing what he means is that "Game & Network Services" includes something else than just Playstation, I'm just not sure what else that is.
Consumer Products & Devices was the name of their TV, Audio & Video, Digital Imaging, Chemical & Energy, Electronic Devices and Semiconductor businesses segment back in 2009. Sony caused a lot of confusion over the years with the similarity of the names for many divisions.
A briefing on the Game division changes over the years according to their Investor Relations archives.
Prior to FY '96, (granted that's not many years), the Game division was part of the electronics division. Specifically, it was labeled as "other" in that division.
FY 1996 - 2007, the Games division was by itself.
The Network Products and Services segment in FY 2008 - 2009 included the Games division and PC & other network services.
The Consumer Products & Services Group in FY 2010 included TV, Home Video, Home Audio, Digital Imaging, PC, Game and Mobile products -- as well as the networked service businesses.
Game was by itself again for FY 2011 and 2012.
It was part of the Game and Network Services segment starting in FY 2013.
Between FY 2012 and 2013, certain network segments (they don't say specifically what though) were listed under "All Other". For FY 2014 and 2015, those network segments are included in the Games division.
Certainly not as much maneuvering of the Games division as MS has done over the years but it's definitely been hopped around a bit.