Yes, it's called "Grounded on 9/11" and ran on the History Channel..
Yup. That's it. Weren't you moved by the outpouring of ordinary citizens in Gander helping the stranded passengers?
One other memorable moment was when the 'reporter' asked the air traffic controllers how they were able to pull off the landing of so many planes, etc. Their reply, "We used our plans that were developed for Y2K".