Since I've seen people here wondering when the primary-run markets will first see the double-run shows, here's the full current air schedule. I'm only listing the Monday of each week; within each week, the numbers are consecutive. It may change between now and the end of the season, since I see two weeks that are scheduled to air in secondary but not primary, which may be a mistake.
Primary listed first, then secondary; premieres are in boldface, primary-market premieres are in blue boldface, secondary-only weeks are in red.
2009-09-21: 1FG001, 1FG006
2009-09-28: 1FG011, 1FG016
2009-10-05: 1FG021, 1FG026
2009-10-12: 1FG031, 1FG001
2009-10-19: 1FG036, 1FG011
2009-10-26: 1FG041, 1FG021
2009-11-02: 1FG046, 1FG076
2009-11-09: 1FG051, 1FG006
2009-11-16: 1FG056, 1FG016
2009-11-23: 1FG061, [color=\"#FF0000\"]1FG026[/color]1FG036
2009-11-30: 1FG066, 1FG046
2009-12-07: 1FG071, 1FG051
2009-12-14: 1FG031, 1FG056
2009-12-21: 1FG036[color=\"#0000FF\"]1FG026[/color], 1FG061
2009-12-28: 1FG041, 1FG066
2010-01-04: 1FG086, 1FG071
2010-01-11: 1FG096, 1FG076
2010-01-18: 1FG106, 1FG086
2010-01-25: 1FG111, 1FG096
2010-02-01: 1FG116, 1FG106
2010-02-08: 1FG121, 1FG111
2010-02-15: 1FG126, 1FG156
2010-02-22: 1FG131, 1FG116
2010-03-01: 1FG151, 1FG121
2010-03-08: 1FG141, 1FG126
2010-03-15: 1FG146, 1FG131
2010-03-22: 1FG136, 1FG151
2010-03-29: 1FG001, 1FG141
2010-04-05: [color=\"#0000FF\"]1FG006[/color], 1FG146
2010-04-12: 1FG011, 1FG031
2010-04-19: [color=\"#0000FF\"]1FG016[/color], 1FG036
2010-04-26: 1FG081, 1FG041
2010-05-03: 1FG091, 1FG046
2010-05-10: 1FG101, 1FG051
2010-05-17: 1FG021, 1FG056
2010-05-24: [color=\"#0000FF\"]1FG076[/color], 1FG061
2010-05-31: 1FG086, 1FG066
2010-06-07: 1FG096, 1FG071
2010-06-14: 1FG106, 1FG141
2010-06-21: 1FG111, 1FG146
2010-06-28: 1FG116, 1FG081
2010-07-05: 1FG121, 1FG091
2010-07-12: 1FG126, 1FG101
2010-07-19: 1FG131[color=\"#0000FF\"]1FG156[/color], 1FG136
2010-07-26: 1FG151, [color=\"#FF0000\"]1FG156[/color]1FG131
2010-08-02: 1FG036, 1FG001
2010-08-09: 1FG041, 1FG006
2010-08-16: 1FG046, 1FG011
2010-08-23: 1FG051, 1FG016
2010-08-30: 1FG056, 1FG021
2010-09-06: 1FG061, 1FG026
2010-09-13: 1FG066, 1FG031