Last year there was a massive campaign by fans to get it back on the air. It succeeded and they produced one more season (well not a whole season but they called it a season.) Then they put it back on the air at 10pm on Tuesday nights. Why not just put it on at 3am Wed. morning? The only reason I can think that they cancelled it is maybe someone slept with the CBS president's wife/husband.
Jericho and NCIS were the only two CBS shows I still watched. I can't imagine what demographics they are going for over there. Once NCIS gets cancelled I am done. I tried to work out our relationship but when only one party is working at it, it never works.

We have been together for almost 40 years now. It will be hard to say goodbye but at some point I just have to let go.