In message
, at
23:27:38 on Wed, 26 Sep 2012, Stephen Furley
remarked:

Automatic Train Operation was tested on the Woodford - Hainault
section before being introduced on the new Victoria Line. Was this
section operated as a shuttle between these stations at that time

From some old tube maps:

Woodford Hainault.

1951: Through Capacitor
1956: Terminus Capacitor
1986: Through in peaks only Capacitor
1995: Through in peaks only Through
2002: Terminus Through

--
Roland Perry