Point of order, that graph is just ITV(1) and doesn't take into account the growth of ITV1HD and ITV+1. The share, when those channels are taken into account, is still falling, but not as fast as that graph implies.
Fair point, but looking at the data available HD and +1 have only grown about 0.6% over the past few years.
I suppose in that case we should also add in iplayer and ITV player.
I dont have data for that, but I suspect BBC iplayer performs considerably better than ITV player
I wonder if the BBC1s share would then indicate an increase?