  We discus Thermofield Double QFT at real time, in the large $N$ limit. First,
we establish a (dynamical) symmetry which we argue holds in general on the real
time portion of the Schwinger-Kelydish contour. At large $N$ this symmetry is
seen to generate a one parameter degeneracy of stationary collective solutions.
The construction is explicitly worked out on the example of $O(N)$ vector QFT.
As a nontrivial application we describe construction of the corresponding
(large $N$) Thermofield Double State in real time collective formalism.
