Reviewing Cosmos made me think of all those TV science programmes of yesteryear, some of which are still with us albeit in reduced form (either in frequency or quality of content). I’m not thinking of the one-off series such as Attenborough’s mighty Planet Earth, which won our “Best TV moments of 2006” series, but more of the science “strands” – programmes like Tomorrow’s World and Horizon that week after week could be counted on to deliver something of scientific interest presented in an accessible form for those with a thirst for understanding. So my question is…