Reply from the BBC when I asked the question why EE is not being shown on a Wednesday :
As the UK’s public service broadcaster, we do a great deal of research to inform what programmes we commission and where we place them in our schedules. When formulating the schedules, we do try to take into account audience expectations related to both the channel and the time of the broadcast, and of the variety of content we provide. We know that not everyone will agree with our choices when scheduling programmes. These are subjective decisions and we accept that not everyone will think that we are correct on each occasion.