The following article was posted on TV Guide about the TCA Spartacus panel. 
A Day in the Life of Press Tour
Much more buzz was generated by Starz screening a graphic (sexually
and violent) clip from the 300-style action series Spartacus: Blood
and Sand (premieres Jan. 22), an unedited version of a blood-drenched
teaser shown last week at Comic-Con. This led to much discussion of
nudity. Lucy Lawless, reunited with her Xena producers Rob Tapert and
Sam Raimi, plays the Lady Macbeth villainess of the piece, and said
she would indeed be naked.
"I'm afraid so. Sometimes," though she
hasn't had to do so entirely yet. "I'm kind of praying that day never
comes, but it's really stressful. I don't like it."
For the males in
the cast who have to flaunt it all, an enhanced prosthetic has been
designed that has been dubbed "the Kirk Douglas," in honor of the star
of the original Spartacus movie. Lawless joked: "That thing gets
shared around, though. At the moment, it's pinned to the wall next to
all the merkins in the makeup truck."