Since when was the vita-2000 called 'Ps Vita Slim'

[JOKA_]

tpjp said:
I think they´ll announce the Vita TV (since it´s the smallest, hence slimmest PS released) and demonstrate it´s "potencial" with the streaming service PS Now. The Vita 2000 may also be announced too, along with some new games hopefully :P.

I was thinking that this announcement might have to do with Playstation Now since it's not physical, and thus would be the "slimmest" launch ever. 

I never thought about ps tv though, good point. That device could be a huge vehicle for getting ps now into homes (if it pretty cheap and maybe changes it's name)