Tuned In Journal
Now the replacement for the original "Three Rivers" pilot has been replaced.
CBS has changed the episode order, scrapping the episode intended to air first in favor of a later episode that's presumably a stronger hour. This is just the latest change for the set-in-Pittsburgh series.
It now appears the episode intended for Oct. 4 is now set to air Oct. 11.
UPDATE: A tipster tells me a screening of the new pilot, now airing as the second episode, scheduled to be part of Paleyfest on Sept. 11 was canceled and replaced with the "NCIS: LA" pilot.