This article was published in 2012 and updated in October 2026.
Mobile TV streaming lets you watch live channels, films and series on your smartphone or tablet wherever you are, over mobile data or Wi-Fi. In 2012 this was still a novelty; today services like Netflix, YouTube, Disney+, Prime Video and broadcasters’ own apps are part of everyday life. But what actually happens between the TV studio and your phone screen? Here is how mobile TV streaming works.
Photo courtesy of Alfred Hermida.
From the studio to your phone
- Encoding: the video is compressed with a codec such as H.264, HEVC (H.265) or AV1. Compression shrinks the data enormously while keeping the picture sharp.
- Several quality levels: each programme is encoded in multiple versions — from low resolution for weak connections up to HD or 4K — and cut into short segments of a few seconds.
- Delivery via a CDN: the segments are stored on content delivery networks, servers spread around the world, so the video comes from a server close to you.
- Playback in the app: the streaming app downloads the segments one after another, decodes them into picture and sound and plays them seamlessly.
Adaptive streaming: why the picture sometimes gets blurry
Modern streaming uses adaptive bitrate streaming, most commonly the HLS and MPEG-DASH formats. The app constantly measures your connection speed and picks the best quality level for the next segment. When you walk out of Wi-Fi range or the mobile signal drops, it switches to a lower quality instead of stopping to buffer — that’s why the picture can briefly become blurry and then sharp again.
Live TV vs on-demand
On-demand video is prepared in advance, so it can be buffered generously. Live TV has to be encoded and delivered in real time, which is why live streams usually run several seconds — sometimes up to half a minute — behind traditional broadcast TV. Low-latency streaming techniques are reducing this delay, which is especially important for live sport.
Apps, accounts and copy protection
Most mobile TV is watched in apps from the App Store or Google Play. You sign in with your account, and the app checks which content you’re allowed to watch — some content is only available in certain countries because of licensing rights. Paid content is protected with digital rights management (DRM), which encrypts the video so it can only be played in the authorised app.
How much data does streaming use?
Video is one of the biggest data users on your phone. As a rough guide, standard definition uses up to about 1 GB per hour, HD around 3 GB per hour and 4K much more. To keep your data allowance under control:
- set the app’s mobile data quality to “data saver” or a lower resolution,
- download films and episodes over Wi-Fi to watch offline later,
- check whether your mobile plan includes unlimited data or a video-streaming option.
Watching on the big screen
Streaming isn’t limited to your phone screen: with Chromecast, AirPlay or a smart TV app you can send the stream to your television, while your phone acts as the remote control.
Andy
Jan 20. 2012
I never know about how it works. Thanks for the awareness.
admin
Jan 20. 2012
Thanks to Jack for the contribution …
Puneet
Jan 23. 2012
Thanks Jack for this awesome post.
karan
Jan 20. 2012
I have tried using mobile TV. It isn’t that good. But can be useful while travelling..
admin
Jan 20. 2012
Yep… that’s a plus point !!
Godwin
Jan 21. 2012
I want to commend you for great wealth of information, it is really an eye opener, most especially on mobile TV,which will be of great help to me.I will always pay visit for any new update. Kudos once again.
Dan
Jan 22. 2012
I am a big fan of mobile streaming tv. The one thing is you need a reliable carrier and an unlimited data plan which can be expensive. I like your idea about going to free hot spots to cut doen on the expense.
Nicholle
Jan 23. 2012
Mobile TV streaming really works but when I have to travel I use to open my mobile TV I think they are the same right?
Tracyann0312
Jan 25. 2012
I tried to use mobile streaming and it’s good especially when you are travelling. At least you don’t have to worry for not watching your favorite channel!
brain
Feb 21. 2012
It is this reason I like the mobile apps lot. They help you to make most out of all those mobile platforms.
mobiletv
Feb 23. 2012
I love Mobile apps and the latest one mobile tv is my favorite. It lets me watch my serials even when I am travelling and don’t have time to sit and watch tv live on TV set. Yes indeed I love to use Mobile TV streaming.
Ganesan
Feb 24. 2012
Whether its available in Apple Iphone
admin
Feb 24. 2012
Yes ofcourse… just make a search in the app store
gprs
Feb 26. 2012
I think watching T.V on mobile is not a good idea.
George
Mar 07. 2012
well ive used mobile streaming plenty of times but this was worth a read. thx for the post matecheers
Shifna
Jun 05. 2012
i wanted to thank you for this great read!! i am definitely enjoying every little bit of it i have you bookmarked to check out new stuff you post. thanks for all.
Shivam
Mar 23. 2014
Great post!!!!!e -learning is the best way of learning .it makes everything easy for us to learn