When you tire of chatting politely with your family, Cartoon Networks day of Christmas specials is a fabulously festive way to shut them up. Although newcomer Johnny Bravos special left us scratching our heads, classic holiday cheer from the Jetsons, the Flintstones, Scooby Doo, and the Smurfs will bring you back to holidays of yore, and will entertain the younguns as well. Other highlights include wacky animator Bill Plymptons 12 Tiny Christmas Tales at 7 P.M. and A Space Ghost Christmas at 1 A.M. Our only complaint is that Christmas Comes to Pacland only airs at 4:30 A.M., but if you stay up and hit the eggnog, maybe youll see Santa!