Showtime for Edie Falco

If Showtime keeps at it, HBO won't be the only "not TV" TV network for long.

The other premium cable channel announced Thursday that Edie Falco has been tapped to star in an as-yet untitled dark comedy in which she'll play a streetwise New York nurse.

À la Weeds' Nancy Botwin, although with a more kosher career, Falco's character will have to juggle the demands of her job with her tumultuous, made-for-cable personal life.