So now it's staid old CBS that's upending the primetime grid? Go figure. Long-established shows are moving all over the place this fall to make room for fresh arrivals.

Biggest news out of Wednesday's Manhattan upfront presentation to advertisers --

Hot sitcom The Big Bang Theory moves to Thursday 8 p.m. ET, as CBS takes direct aim at NBC's venerable (and perhaps vulnerable?) comedy empire that night.

Hawaii Five-O is back. (Kono has lost a lot of weight and grown boobs.)

And, of course, there's William Shatner.

Click for a report on the upfront presentation (and this other smart, funny take on it), CBS' fall schedule grid, and descriptions and clips of the new shows.