NEW YORK — CBS's decision this month to cancel the drama "Joan of Arcadia" after two seasons has baffled and angered its fans. Many are peppering CBS and anyone who will listen with e-mails trying to find some way to keep the series alive.

It's a long shot, at best. The series where God appeared to Amber Tamblyn's title character in the guise of average people won critical praise and an Emmy nomination but couldn't reach beyond a dwindling cult of supporters.

Fans said they appreciated a drama that talked about spirituality without being preachy, that included God but didn't take religious sides. Several parents wrote that it was one of the few quality shows on television they felt comfortable watching with their children.

"I liked that it gave my daughter and I ethical things to talk about without having to bring them up, things like premarital sex and spirituality," said Dawn Richards, 44, who watched regularly with her 14-year-old daughter at home in Boca Raton, Fla. "It's a great springboard."

Angela Williams, who works at a domestic violence shelter and lives in Boody, Ill., organized an e-mail and telephone campaign to support the show. The 24-year-old scheduled her Friday nights around the series and said a lot of her friends did, too.

We feel your pain, say the folks at CBS.

"It was one of the toughest programming decisions we have had to make in the last couple of years because qualitatively, everyone here loved the show and was proud of the show," said Chris Ender, CBS entertainment spokesman.

But they couldn't ignore its ratings decline, he said. During its first season, "Joan of Arcadia" averaged 10.1 million viewers, respectable numbers for Friday, a quiet night for television. This year, viewership sank to 8 million, according to Nielsen Media Research.

That was lower than "Father of the Pride," "Dr. Vegas" and "Hawaii" — all series that went to their graveyards long ago.

The most important number may be this one: 53.9.

That's the median age of the "Joan of Arcadia" viewer, nearly three years older than the typical CBS viewer.

There was a time CBS was more accepting of its older audience. Not now. CBS narrowly missed being the most popular network among 18-to-49-year-old viewers this year, an achievement once unthinkable, and its executives hunger for that victory. Four of its five programs with the oldest-skewing audience, including "Joan," were canceled.

It's not a stretch to think that in another year, "Joan of Arcadia" might have gotten a reprieve.

"Up until the very last minute I just felt that there was no way that we'd be canceled," said Barbara Hall, the series' creator. "The response to our season finale had been really big. I really didn't understand how much demographics played into this, more so than ratings."