That's interesting. I heard that due to the myriad of challenges the producers encountered in producing a show in real-time, they would modify the format for the second season whereby each hour would represent whole days (probably consecutive days) of Jack Bauer's exploits at CTU.
It was also reported somewhere else that is was keeping the same format. I saw that thing on the 24 message board at fox.com. There was a link to the article. Jack has to come back. IF they kill him what good was it?