It's impossible to overvalue the importance of television - both in its serious and less serious functions. It's one of our most important ways of finding out the truth - and also of changing the world, and finding out what in the world needs changing. It's also an immense bringer of joy - I learnt how to laugh through television, and now my children and I, every day of every week, share the joy and stupidity of TV shows - they actually make us HAPPY