The Broadcasting Standards Authority received a record number of complaints in the year to June and an increase of almost 30% on the previous year's complaints.
The BSA's annual report shows 210 complaints in the year to June compared with 162 in the previous year.
Chief executive Dominic Sheehan says 193 decisions were released compared with 125 in the previous year.
All but three of them related to television news, current affairs and factual programmes. But he says no single issue stands out.
Mr Sheehan says the complaints do not involve a recent controversy over former television breakfast presenter Paul Henry, which fell outside the reporting time.