An average TV viewer in the UK sees 47 ads a day

"Viewers in the UK are still exposed to a record number of TV ads, with figures from 2011 showing an increase on the previous year.
A survey conducted by Thinkbox using BARB data said that that the average Briton saw up to 47 ads a day, an increase of 2.6% on 2010.
The study also revealed that the average viewer watched up to 28 hours and 14 minutes a week last year. Of these hours 64% were spent watching commercial channels, with 72% of the viewers aged between 16 and 34."

Source:  UTalkMarketing, 24th January 2012