I’ve been away so only retuned my box for the extra Olympic red button channel (302) recently. Whether or not my problem started then I am not sure! I cannot now receive certain channels (ITV3 5+1 5USA etc) so wish to retune manually on all different transmitters. However, since the main retune in March I am not sure whether my transmitter numbers ie 34 for Rowridge etc have stayed the same or have disappeared. Do I still use the same ones? Any comments please?