[what]

2-4pm though is the only slot that has any kind of variety in the schedule, so in a way them finding a hit which ended up airing year round like the rest of the daytime schedule would make things even more stale.

You could say the same about ITV1's schedule in general. Apart from 1.5 hours (normally) in the evening, 2-4pm, and as of recently, the overnight hours, it's the same shows in the same slots for most of the week.