Which App and Devices Broadcast Live Streams With Shorter Delays?

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How real is real time when live streaming a TV broadcast?

While my sister and I were watching the same program on TV, I could hear from my room that the audio coming from the living room and my room were not synchronized. I could hear the audio of my TV ahead from that in the living room. So, I already know for a fact that a TV broadcast via cable has seconds delay compared to watching a program via air antenna (terrestrial).

Cable TV Broadcast vs Live Streaming on the Net

Outside my room, my sisters were watching GMA News on TV; while I was watching the same program via live streaming on my iPhone. I could clearly hear that the audio from the TV was ahead from that of my iPhone. 

YouTube App vs Facebook App

On iPhone, if live streaming via YouTube app, there was a delay of 20s10 (seconds). With Facebook app, the delay was only 10s19 (seconds).  Therefore, that makes live streaming on Facebook app nearer to real time compared to live streaming on YouTube app.

Facebook Mobile App vs Facebook on Browser

I also measured the delay between live streaming on Facebook on mobile vs Facebook on PC. On mobile, the live streaming was ahead by 14s45 (seconds) than on browser.

Devices used:
  1. Samsung smart TV broadcasting via Destiny Cable
  2. iPhone 6s iOS 12.3.1
  3. MSI GT780 with Windows 7 Ultimate
  4. MacBook Pro (soon)
  5. Android (soon)
  6. Windows X (soon)

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