[NOTE: This PopWatch HeadScratcher is closed. See your clever responses here.]

Another PopWatch HeadScratcher to get you through the weekend (hopefully easier than last week):

What do these four TV actresses have in common?

Tyne Daly
Rachel Griffiths
Lisa Kudrow
Lucy Lawless

(For full credit: Tell me why the following three actresses — Debra Messing, Sarah Jessica Parker, and Phylicia Rashad — do not belong on this list.)

Send your best guess to

As always, points for creativity. On Monday, we’ll play favorites and post the best responses.