On Wed, 21 Jun 2006 21:43:05 +0100 someone who may be Helen Deborah Vecht wrote this:-
It was one of the many mistakes they made with the schedule at the time and have yet to rectify.
Another mistake was to try and fit nearly all programmes into multiples of 30 minutes. It was far better to give them the time they needed. Dumbing down to multiples of 30 minutes has not helped the standard of programmes at all.