See, This Is Why It's Channel Four

It worries me a little, Andrew, that while you pointed out that I didn't bother to use proper dashes a fortnight ago, you failed to notice the impossibility of a programme being on "noon on Sundays at five. " The fact that you very often aren't conscious at noon on Sundays is no justification.

I, of course, am excused, because I was justifiably knackered at the time. The lesson here is that there is no mistake for which none of the blame can be offloaded.