David Bianculli

A new sitcom premieres on ABC Tuesday that blends scripted stories with improv. Sons and Daughters was created by Fred Goss and Nick Holly; its executive producers include Lorne Michaels, of Saturday Night Live fame.

It's mid-season in the world of television, and that means some are being cancelled -- or simply phased out.

The new TV version of Once Upon a Mattress, which will be broadcast Sunday night on ABC, features the return of Carol Burnett.