When Roxy tells Trevor to go home from the hospital she says he can get a few hours sleep before his morning training. Trevor has said that his training is at 6:00 am and the TV news playing in the hospital shows that it is 5:15 am, meaning Trevor had just minutes, not hours, before his training started.
Pamela tells Katie and Lucas to go to their rooms and play, indicating they each have their own room. Later in the series it is shown that Katie and Lucas share a room.
COL Holden is wearing a Special Forces unit patch on the left shoulder of his Army Combat Uniform but he is not wearing a combat patch on the right shoulder of his ACU's. Not only is he in the Special Forces, which deploy to combat zones routinely, we learn later in the series that he has, in fact, recently returned from combat operations.