Medium star on what's in store after moving to CBS

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Dec 14, 2012, 3:54 PM EST

After a day of producers and executives diplomatically bashing NBC for dumping Medium and glorifying CBS for picking it up, star Patricia Arquette offered some hard facts about the new perks of setting up home base at CBS. Forget about scheduling and marketing. CBS just treats its crew better.

"Well, our first day of work, the crew was really grateful because they sent a coffee cart," Arquette said in a group interview Monday in Pasadena, Calif., at the Television Critics Association summer press tour. "They're like, 'Hey, NBC never sent us a coffee cart.' We had craft services, but little perks like that [are new]."

The new season of Medium will also give Allison Dubois (Arquette) a slightly new look. Her hair is short in the aftermath of her brain tumor. "It was written in the script that I had this brain tumor, so when I came back, they said, 'Well, we can get you, like, 10 wigs, and you can get a wig on every day, or we can cut your hair,'" Arquette recalled. "I was like, 'Uh, let's cut my hair.' It feels really good. There's something about cutting your hair and starting all over."

The brain tumor will also affect Allison's psychic abilities. Arquette is only filming the second episode of the season, but already her powers have changed "a little bit," she said. "The first few episodes, they're not showing up exactly the same way, and she's not even sure if they will, and it's been several months. There's a time jump. It's changed her a little bit. You'll see. We can't say everything, my God."

Meanwhile in the Dubois family, expect the eldest daughter, Ariel (Sofia Vassilieva), to rebel, while the youngest, Marie (played by twins Miranda and Madison Carabello), comes into her own on the show. "There are aspects of this episode that we're just finishing where Ariel's kind of breaking away, testing boundaries as a teenager," Arquette said. "There's been some of that. And then the littlest one, she's getting much more comfortable memorizing and getting more dialogue, because we get our dialogue in a very short order before shooting it. So she's getting more comfortable with her scholastic skills, so she's taking on more, and that's cool to see."

Earlier, show runner Glenn Gordon Caron described an upcoming episode that would composite Arquette into footage from Night of the Living Dead. At this stage in production, Arquette could only guess how that will be accomplished.

"I don't know what color screen they use now," she joked. "It"s like green screen, blue screen, silver screen, gold screen."

Also addressing rumors of a Medium/Ghost Whisperer crossover now that the shows are on the same network, back to back on Friday nights, Arquette remained open to the possibility. "I only want to see something that's done well, so I don't know," she said. "If I read something, and it was done really well, then yeah."

Medium premieres on CBS Sept. 25 at 9 p.m.