Tomorrow, Lovefilm becomes Amazon Prime Instant Video, and unless you take advantage of the various early adopter discounts, it'll cost you an up-front annual fee of £79. On the upside, the company is pushing to add more TV shows to the service in the hope of clawing back some of Netflix's lost ground. First up, Amazon has signed a deal with Warner Bros. that'll see the first seasons of Arrow, The Following and Revolution appear on UK Prime within the next few days. The agreement will also see Hostages and The 100 appear in 2015, with subsequent seasons of all five shows added afterward. At the same time, the retailer has confirmed that UK users will be able to watch its original TV comedy Alpha House, which is a bit like House of Cards, but with more jokes.