Hi John,
there was also this, "the quiet one" a specially modified Hughes OH-6A , although it's from an even earlier period than the 1988 you mentioned.
It was used by Air America for covert night operations in SEA and therefore featured FLIR as well.
The airspacemag article itself makes for pretty interesting reading and if you go into the picture gallery in the article , you will find a picture of the cockpit as well , showing the dual FLIR screens, one on each side:
Air America's Black Helicopter | Military Aviation | Air & Space Magazine
Also the VHPA. has a nice pdf with some more details about the FLIR and night flying training for/with that specific helicopter:
http://www.vhpa.org/stories/AAblack.pdf
Hope this helps,
Kind regards,
Vee1