On TV, UK public service broadcasters (PSBs) have operated within a privileged ecosystem; a guaranteed electronic programme guide (EPG) prominence placing their channels at the forefront, helping sustain their market share and spawning digital families

But technological changes within the TV set are eroding this prominence, and on devices, such structural advantages are non-existent

To confront dramatically falling mobile engagement, despite consistently excellent content, the PSBs need to collaborate and replicate their privileged linear position or they will struggle against the major SVOD players

Record growth in 2015 shows Netflix to be well on its way to achieving its goal of 60-90 million US streaming customers, while the latest wave of international expansion suggests Netflix will at least double its global base to over 150 million streaming customers by 2020

Much has been said about the growing SVOD competition from Amazon, Hulu, HBO, Disney and many others, but the simplicity and single-mindedness of the Netflix model is hard to beat, with evidence suggesting it has extended its lead in the toughest of markets, the US

Although growing spend on content origination is putting a strain on the Netflix business, it is critical to long-term success, contributing to the distinctiveness of the Netflix offer and its complementariness with other SVOD services

Netflix gained 1.8 million accounts in the course of 2015 (+37%) to 5.2 million, surpassing the 1.3 million VOD-enabled homes added by fixed line telcos Sky (including NowTV), Virgin Media, BT and TalkTalk. SVOD homes overlap with pay-TV accounts, and are topping up content for family members, not cord-cutting

Amazon Prime Instant Video, bundled into Prime, looks set to balloon from 1.6 million users in Q4 2015 on the back of the marketing of Jeremy Clarkson's motoring show, cementing its position in home entertainment by serving a family-friendly eco-system of devices and media, leveraging its mammoth 25% share of UK e-commerce

Free-to-the-user YouTube remains the heavyweight with 35 million monthly unique users in the UK, although skewing strongly to Millennials, while those 55+ will take longer to move beyond catch-up TV to embrace a wider range of VOD options

ITV has delivered double-digit growth in adjusted EBITA for the sixth year running, marked by big increases in both TV NAR (Net Advertising Revenue) and non-TV NAR revenues, which now make up nearly 50% of the total

The outlook for 2016 is promising. We expect continuing real growth in ITV family NAR in line with the market average, and further substantial increases in both Online, Pay & Interactive and ITV Studios

The big question is how ITV can sustain all it has achieved with the international expansion of ITV Studios and use its growing scale to support growth in its Online, Pay & Interactive revenues abroad as well as in the UK