Travel Technology - What Booking Programs Show Fares Classes: No ITN, Now No TNT?

I want to check availability on some future flights. I had been using TNT in expeert mode, which was showing classes globally, but they they have limited things to domestic only. Which programs, if any, still allow you to view class availability for free?

I think www.expertflyer.com still has a limited free service. I use it a lot and pay for their premium offerings.

The KVS program that goes around in MR forum does the job, and there are arrangements for trialing. Otherwise, I'll point you to seatcounter, http://www.seatcounter.com/.

This should really be in MilesBuzz or TravelBuzz, though.