It takes some daring to set your new drama series in the territory occupied by one of the acknowledged masterpieces of television fiction. But that is what the creators of The Game (30 April) have done. The resemblance of this counter-espionage series to Tinker, Tailor, Soldier, Spy is most acute in the scenes in the dowdy, brown offices of MI5, where people sit around a boardroom table and wonder whether, as in that drama, one of them is a mole. In other respects, though, The Game seems to be taking its own, less cerebral direction. Rather than a superannuated and thoughtful spycatcher, this series, set in the dark days of 1972, has as its hero a young and dashing agent. When we first see Joe Lambe (Tom Hughes) he is in Poland, offering his services to the KGB – whether in earnest