Blair Witch meets reality

CW boss Dawn Ostroff has unveiled a new fall show,

from horrormeister Sam Raimi (

,

) and reality-show vet Jay Bienstock (

,

.)

“It’s

as a reality show,” she said. Thirteen attention-starved young people go off in a black bus to a backwater in the Louisiana bayou, “and we kill one off every week.”

“Will people on the show actually get killed?” one wag critic asked.

“We’ll do anything for attention on the CW,” Ostroff replied.

Actually, the kids disappear mysteriously (and, perhaps, gruesomely) one by one, but remain among the living, far from the show. The real mystery is why any decent reality wannabe would agree to go on such a creepy show when the big payoff is only $66,666.

It’s a cute iteration of the Devil’s number, but another digit wouldn’t hurt. The low payout kind of broadcasts the tenuous economic underpinning of the little network.

Underlining the tenuous creative underpinning: The netlet also confirmed that Shannen Doherty would join Jennie Garth and Tori Spelling in the washed-up kid actress brigade, on the remake of

. Doherty will play Brenda, of course, who will be guest director of a musical production at fictional West Beverly Hills High.

Wonder if she’ll teach the new kids — all tall, thin and gorgeous — the finer points of drunk driving and cat-fighting in clubs.

On a classier note, Anne Archer will star in another new CW show,

, playing a

to — of course — beautiful, rich and fashionable teenagers. OK, she was born in the same year as me, and the network aims at the very young, but still….

“Oh, I don’t care about what age my character is,” the 60-year-old Archer told me. “She is a very classy and glamorous lady.”

A little bit of a change from her

role as Danny DeVito’s slutty wife, mother to two of the main characters, who also has an affair with one of their young pals.