P260 ORACLE 270 Fri 1 Jul YTV 2003:43  1/2  IN THIS REGION  Air Call Teletext .............N 188 Barclaycard-Visa Theatre Guide YTV Region ...n.n.............. 231 London's West End ...........n. 232 British Airways ................ 176 World Clock ................... 168 Computer—Hal ................... 189 Crosse & Blackwell ............. 195 Direct Line Motor Insurance .... 187 C4 ADVERTISING INDEX IS ON PAGE 570 What's On Metro Classifieds TV side