I just assume TV programs about science/engineering, even British ones, will be disappointing. Oddly the maths in Derek Jacobi's portrayal is very good - but t

I just assume TV programs about science/engineering, even British ones, will be disappointing. Oddly the maths in Derek Jacobi's portrayal is very good - but the human drama doesn't always work. In one scene he is talking to the commanding officer who says all this sex business is just youthfulness and it doesn't really matter when you get older. But a 20something Turing is played by a 50something Jacobi who looks 20years older than the actor playing the C/O!