I can confirm Oyster readers are installed (And covered) at BHK and ENF

BHK has 1 or 2 in the booking office, 2 on the up road gate access and 2 on
the down road side access. The new (non oyster) ticket machine has also been
installed on the up road platform.

ENF has 4 (That I've seen) between the 'gates' and the platform - which will
make revenue protection more fun people will need to pass beyond the 'gates'
to swipe in!

I'm also told that SLV has readers installed at the bottom of the steps, and
SBU has at least 2 inside the ticket office.

No sign of TIS+ though in the booking offices and of the people I've spoken
to they know there getting anther machine, but don't know much more than
that.