It is a great pleasure to welcome to the new Saturday night show the charming and articulate A.O. "Tony" Scott, chief film critic of the NYT, who is now announced to be part of the new team for ABC Disney's "At the Movies."  My memory of Julia Childs TV show was that it was on PBS, then called also Channel 13, and that it was vaguely like "I Love Lucy" episodes from my distant youth when Lucy would destroy the kitchen in some fashion before Ricky came home to demand some "'splainin' to do."  Now that I'm a grown-up, I see that Julia Childs was much wittier than Lucy just because French cooking on TV wasn't supposed to be absurd.  Tony Scott likes the new movie a lot -- it sounds cool and joyful, by the signature genius Nora Ephron --, and he likes Meryl Streep's performance more than a deal.   "By now this actress has exhausted every superlative that exists and to suggest that she has outdone herself is only to say that she's done it again. Her performance goes beyond physical imitation, though she has the rounded shoulders and the fluting voice down perfectly