FX (Tuesdays, 10 p.m. ET)
After a heavy-handed third season, this smart, sexy series is back in finer form, like a woman who’s just undergone a little lunchtime lipo. Christian (Julian McMahon) is still having an identity crisis. But, as he learns from a visit with shrink Brooke Shields—who joins Kathleen Turner and Rosie O’Donnell on the celeb guest-star roster this season—there may be a compelling reason for all those sexual escapades, which hit an outrageous new low in the premiere. After sowing a few oats of their own, Sean (Dylan Walsh) and Julia (Joely Richardson) are back on, their complicated marriage about to become even more so with a baby on the way. A bit depressing? Yes, but it’s the balance of dramatic tension and giddy spirit that makes this show so spot-on when it’s at its best. That would be now.