Linear television's audience is ageing; with the drop in viewing by younger demographics, consistent viewership by the over 65s has seen them increase their share of total viewing since 2010 from 24% to 31%

The difficulties and efforts to re-engage with the younger cohorts are well documented. But what of the resilient, older group that forms the stable core of the television audience?

Conspicuous attempts are being made to create specific shows targeted at the oldest viewers, but outside of limited categories, creating relevant programming may be more difficult than expected

In the UK, traditional broadcast television's future appears threatened, as technological developments increasingly allow people to access video content on demand, whether on TV sets or other screens, or from traditional broadcasters or online services.

This report examines the extent to which timeshift viewing, by which we mean personal video recorder (PVR) playback and viewing to catch-up services, has bolstered linear TV.

The linear schedule is still very relevant for both consumers and advertisers, maintaining television’s status as an effective mass medium for building brands.

The Government is exploring the privatisation option for future Channel 4 ownership on account of its concerns about the sustainability of the Channel 4 business model in light of recent viewing trends.

Channel 4’s focus on 16-34s has put it under extra pressure, but the topline figures do not remotely tell the true story. 2010-2013 was a period of disruption due to special factors. Little decline has occurred since, and Channel 4 group 16- 34 and peak time viewing shares have held firm since 2010.

As for revenues, the trading dynamics of UK TV advertising have seen audience loss more than matched by increased spend, benefiting both Channel 4 and ITV. This is not about to change, while BBC3 closure and Channel 4 digital video growth will reinforce the financial sustainability of Channel 4, now delivering its remit better than ever.

Channel 4 is a key pillar of the UK’s audio-visual economy. Its unique commissioning model fosters a hotbed of new creative UK talent, an ecosystem of independent producers, many micro.

Channel 4 commissions a greater share of its budget than any other broadcaster, public or private, also fostering the creative economy outside the M25, and 9% of commissions will be to the Nations by 2020.

The future success of the stand-alone independent production companies is not in the hands of ITV and Channel 5, but of Channel 4 and the BBC – the pure PSBs.