via Discovery press release:
DISCOVERY CHANNEL'S TUESDAY NIGHT CONTINUES ITS RATING SUCCESS
On August 18, 2009, Discovery Channel's Tuesday night line-up was the #1 primetime ad-supported cable network in delivery for both M25-54 and M18-49.
The all-new episodes of SWORDS: LIFE ON THE LINE at 9PM ET/PT and THE COLONY at 10PM ET/PT both raked in 1.6 million viewers.
SWORDS: LIFE ON THE LINE was the #2 primetime ad-supported cable telecast for M25-54 (702) and was #3 for M18-49 (674)) that evening. THE COLONY was the #2 program for M18-49 (721) and #4 for M25-54 (626) viewers.