The Wire is finished but 24 is back Sunday night and you just might want to watch this two and a half minute trailer and read the transcript of the DVD-only scene that explains Jack’s exit from CTU to get in the mood. (Okay, HBO has the Season 2 premiere of Carnivale on as well. With Desperate Housewives starting a run of fresh episodes and NFL wild card playoff games, looks like a good day to ignore the weather and watch TV.)