5. There are already hundreds of movies out there
If you think there will only be a few 4K movies available to watch at home, you're mistaken. There isn't yet an agreed format or standard for 4K movies on disc, but it's not far off. And when the players start coming out, there will be literally hundreds of movies and TV shows available from the off. Many have been filmed natively in 4K (or above) over the last few years, but even films shot on 35mm film 50 years ago can be rescanned and remastered in 4K.
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Sony Pictures alone has already remastered over 100 movies in this way. It's worthwhile, too - the 4K remaster of classics such as Laurence of Arabia will be the first versions of the movie to use and display all of the picture information captured on the original film. So in some respect, 4K remasters will be the definitive editions.
6. TV shows are now shot in 4K by default
It's not just movies that are getting the 4K love, either. If you want to make a new TV show at Sony Pictures, 4K is now the default format. It's the same elsewhere. It's a little more expensive to make shows this way, but the increased value when it comes to syndication later down the line makes it a no brainer for many of the leading US studios. And of course, older shows shot on film can be remastered in 4K just like older movies. Below you can see Breaking Bad being remastered in 4K, one painstaking frame at a time.
7. 4K TV broadcasts aren't far away
A compressed 4K movie stored on a server at a cinema takes up around 200GB of storage space. Sony's market-leading F65 8K camera (Sony shoots in 8K and downsamples to 4K or 2K) can squeeze only around 1 hour of footage onto a 1TB Sony SR memory card. So you'd be forgiven for assuming that 4K TV broadcasts are a long way off, but that's not actually true thanks to advances in compression technology.
The newly ratified HEVC compression format for 4K can deliver a brilliant Ultra HD broadcast picture with a bitrate of just 20Mbit/s. When compared to the 12Mbit/s currently employed for HD, that's not such a huge leap. FIFA will be filming the World Cup in 4K in 2016, and as we found out recently, the BBC is planning to trial 4K broadcasting at Wimbledon this very year. As an aside, YouTube is already serving up 4K video, and Netflix says it's not far behind.
8. Glasses-free 3D is coming
The final reason to be enthusiastic about higher resolution TVs is that they are opening the door for the definitive form of 3D - glasses free - to become a reality. Current glasses-free tech, which is already impressive but not quite ready yet, uses a lenticular-style lens over the screen to separate the light from the panel into two channels - one for each eye. This division of the light effectively halves the resolution which is why glasses free 3D requires at least a 4K panel to be effective.