Yeah flying out at odd times and/or odd days can save you a lot of frustration dealing with the TSA lines. The worst of the lines are due to commuter or holiday traffic 99% of the time and the rest of the time you can breeze right up to the scanners and be through in a few minutes.

They kind of have to advertise the worst wait times though because if they say 1 hour non peak and 3 hours peak the times the airport or the traveler gets it wrong the airport will catch the blame.