P275 CEEFAX 275 Sun 26 Oct 05:35/43          BERLIN TUNNEL 21 SATURDAY BBC2 (1981) 1.05am-3.20 GMT An ex-US Army officer makes a daring rescue bid for his girlfriend who lives in East Berlin. Set in 1961 and shot entirely on location in West Berlin, the brave young soldier is played by Richard Thomas (John-Boy in the Waltons). Ute Christensen, who really did escape from East Berlin, plays Else, the damsel in distress. Films for the week 185/285