We used to have Boomerang and the advertising during the day was almost exclusively for money lenders.
My 8 year old asked me one day " What is a mortgage?". I explained and she told me that a mortgage can be a big worry and cause lots of stress. It said so on Boomerang.
As far as I know there is no law against advertising banking or lending products during the day, either in Britain or Ireland. These ads are not targetted towards children, so there is no control on them.