” On the commercial channels, the amount of airtime allowed by the UK broadcasting regulator Ofcom for advertising is an overall average of 7 minutes per hour, with limits of 12 minutes for any particular clock hour (8 minutes per hour between 6pm and 11pm). With 42-minute American exports to Britain, such as Lost, being given a one hour slot, nearly one third of the slot is taken up by adverts or trailers for other programs.”
Explains why so much of the “ad time” on the shows we watch is taken up by pre-views for other shows. Also – it feels like there are less ads. trippy!