The UK mobile market is growing strongly – we estimate revenues by 5% and EBITDA by 8% in 2017 – excluding one-off regulatory drags and the loss of non-profit-generating handset revenue

Regulatory price cuts end in mid-2018, and the handset effect will disappear from all reported figures from April 2018, leaving scope for very positive headline growth next year – considerably better than its European comparators and the sluggish UK fixed market

The outlook for the UK mobile industry is the best it has been in a decade, with significant growth in data demand, price increases, some supply constraints, rational competition, and major regulatory drags rapidly fading

Engineering excellence and user generated content (UGC) have propelled YouTube to Facebook-level reach, with growing viewing in all demographics and on the TV-set

However, the commercial limits and PR risk of its long-tail content model have prompted a diversification effort involving subscriptions and long-form content

Becoming a major part of Google’s revenue amid fierce OTT competition would require YouTube to be more flexible in its partnerships with the AV industry, and a more aggressive go-to-market strategy

Even with the decline in linear television viewing, online video remains a small component of total video consumption. The growth area is unsurprisingly SVOD; subscription video now makes up about two thirds of the UK's digital video spend.

Netflix is moving from an aggregator of content to a "channel" in its own right, increasing proportionate spend on original programming, something that the public service broadcasters are unable to do for differing reasons. Amazon had a tough 2017 for video, and are still struggling to create a hit.

New Nielsen audience data suggests that the long-term "library value" of Netflix's originals may be overstated, while the BBC's iPlayer continues to be hampered by not really having a library at all.