Ofcom have released their 2017 TV Viewing report.

Regional News, S4C, National Regions, Childrens' TV are all examined.

"Time Shifted", and  "viewing by genre" are all included.

The review includes figures (when they apply) since 2009.

The OFCOM report is here.

"Live TV viewing accounts for 80% of programme viewing time across all screens but has diminished over time."

"The decline in average weekly reach % for the BBC and Channel 4 families (of channels) was more pronounced for 16-34 year olds".

"Despite increased channel choice, the main five PSB channels continue to maintain half of total broadcast TV viewing".

"The main five PSB channels have maintained their share of viewing in recent years."