Online advertising became the majority of all UK ad spend last year, in step with China but ahead of all other major markets. 

Direct response has further increased its share to 54% of UK ad spend, fuelled by the self-serve platforms of Google, Facebook and Amazon, while content media nets just 11% of the online advertising pot.

We estimate that all online-delivered channels - including "pure play" online properties, broadcaster VOD, digital out-of-home and online radio - could account for well over 60% of UK ad spend by 2020, but only with improved commitment to industry governance. 

Linear TV's decline continued into 2018, with an overall drop of 3% across the first 12 weeks YOY. However, overall TV set usage remained flat at 4 hours/day, as time spent on unmatched activities—which includes Netflix, Amazon and YouTube—continues to rise.

Within the ever-shrinking pie of consolidated viewing to the TV set, share of viewing (SOV) to the ten largest channels remains broadly flat. Across the whole of 2017 and the start of 2018 the best performer has been ITV (main channel).

Several big-name digital channels are showing surprising signs of recent decline, including UKTV’s Drama and Viacom’s 5USA. It is too early to tell if these declines are a blip or a trend. However, they reflect stalling growth from the long tail of digital channels in aggregate. 

The market for addressable TV looks constrained despite its benefits, with Sky AdSmart taking less than 2% of overall TV ad revenues. Meanwhile, online video revenues for Google, Facebook and others have surged dramatically

Agencies are seemingly enraptured by online video – a highly profitable medium to buy – despite concerns about a lack of effectiveness, safety and transparency 

For broadcasters to compete, better radical collaborative action is needed, including industry-wide adoption of AdSmart, and overhauling the trading agreements which hinder its take-up