I had that thought, when I noticed that when we watch it live (when it is actually on live IF hms are still up......) the producers always cut to a break at an interesting point - if they can. It is bloody irritating. I don't believe timing would always be an issue, because so much of it is that sound of birds tweeting. Since last time I saw producers were not 15, but almost 40 minutes ahead, then surely they have time to edit stuff out that we wouldn't hear anyway. Finally after about half an hour of bird noises, something interesting happens, and before we see too much they take it to the break. What annoys me is that they are so obviously saving it for the HLs.
In other words, Big Brother controls what we watch, who we vote for etc... - not news I know, we are all aware of this - but they have taken it a step too far with cutting the live feed. At least they could have put an earlier slot on one of the extra channels, instead of so late that the most we get is probably 20 minutes of live action most nights before the hms all sod off to bed, when the bird-noise bits are taken into account.
