Okay so technically the CW didn’t exist when Shiri Appleby’s last successful show — the cult hit “Roswell” — took a bow, but during its three year run it did start out on the now defunct WB before moving to the equally defunct UPN. Since then those two networks have combined (I’ll form the head) into the CW, and Shiri has returned with a new hour long drama, “Life Unexpected.” She is joined by Kristoffer Polaha, who you may remember from “North Shore” or “Miss Guided” (or not, since nobody actually watched them), as her one night stand and the father of the child she gave up for adoption fifteen years ago. Brittany Robertson of “Swingtown” and “Dan in Real Life” is that child, who is of course is more mature and put-together than her erstwhile parents.

And there you have the basic plot: man-child meets girl, finds out girl is his daughter he never knew about. Man-child introduces girl to another girl who happens to be her mother. Shots are taken at the foster system, somehow there is a family in all of this, and hilarity ensues.

While the pilot failed to surprise in plot, “Life Unexpected” was unexpectedly enjoyable. It suffers from a soundtrack which is far too loud and at times drowns out the actors, whcih is distracting at times, but the dialogue is otherwise snappy and well delivered. It looks like the CW might finally have another show worth watching, aside from “Supernatural.”

“Life Unexpected” airs Mondays on the CW at 9/8c — make sure tocatch it if you can, since the CW’s online player is pretty awful.