P478ORACLE 478 Mon30 Dec C4 9732:58   CHANNEL FOUR LINE   NEW TV DEAL UP ALL MAJOR RACES   Next Saturday's Sandown card sees the start of Channel Four+s new deal with four ITV companies to screen 74 meetings in each of the next four yearu Head of Channel Fouq racing John Fairley said: "All the classics and most of the major races in Britain are secure for Channel Four. "We now expect racing to consolidate its position as one of the prime sporting attractions on Independent Television."  Racing headlines 470 MECCA BOOKMAKERS TELEBETTING SERVICE  SEE PAGE 474 FOR DETAILS