Having just seen Elwyn Brook-Jones in 'Odd Man Out' it took my mind back to Gary Halliday, the first UK TV series to make a real impression on my young mind. I've never seen any repeats or articles on the series but the fact that it had an aviation basis and the mysterious 'Voice' was enough to hook me. Perhaps it's best that it remains a vivid, if slightly scary, memory as its production values may not stand up today? Of course Terence Alexander went on to be a television staple whereas Terence Longden and Elwyn Brook-Jones became rarer commodities. Anyway it remains stronger in my memory than all its contemporaries like Ivanhoe, Robin Hood and William Tell.