Yeah, cos no one would have thought about that would they?
Obviously someone has thought about it, though clearly not you. Why don't you think about it and post your thoughts? What is the answer in your opinion?
Will all three channels talk to each other and make sure they play the adverts at the right time? Will each channel have given Last Minute a guarantee that the adverts will be played out at an exact time to the second? Will the adverts have been booked with a 30 second gap inbetween each one so that over/underruns don't matter as much? Will each channel add or drop promos to make sure the adverts go out at the correct time?
I think you misunderstand the (admittedly not particulary sophisticated) sarcasm in my post. Of course it will have been thought about - in fact I know it has, hence my post - the thing either has to be timed to the second or not bothered with. It's not like they were just going to make it up on the hoof and hope it works!
