watch some of the previews. They have extended previews of the new shows and they all look pretty damn good.
Threshold looks awesome and will definately be a regular on my tv schedule. There isn't a show on there that doesn't look decent though Ghost Whisperer could be watched more to see Jennifer Love Hewitt than the show itself. :P
The half hour comedy How I Met My Wife looks to be quite good as there hasn't ben a decent comedy show in a long time IMHO.
Threshold-
http://www.cbs.com/cbs_video/insider...php?chap=10363
How I Met Your Mother
http://www.cbs.com/cbs_video/insider...php?chap=10358
Criminal Minds
http://www.cbs.com/cbs_video/insider...php?chap=10361
Close To Home-
http://www.cbs.com/cbs_video/insider...php?chap=10360
Out of Practice-
http://www.cbs.com/cbs_video/insider...php?chap=10359
Ghost Whisperer-
http://www.cbs.com/cbs_video/insider...php?chap=10362