Dolphin browser works really well.
All of the AssemblyTube videos I have tried, play using this browser, on my Galaxy S3 mobile phone.
If you
always want to have Dolphin browser access the web using your phone, you need to set it as your
default web browser.
To set a particular browser as the default browser is not that straightforward, but here is a tip which I have found very useful.
There is a free app at the Google Play Store called "Default App Manager".
Here is a link to it.
This app lets you decide which of the browsers on your Android device you want to act as the default.
The beauty of this is that you can easily and quickly change your mind and set a different browser as the default whenever you want to. So if you try Dolphin and then want to switch back to Chrome as your default, you can do this in a few seconds.
Default App Manager can be used to change the default software for any application on your Android phone, so it useful in many ways.
Hope this tip is useful. And thanks for the suggestion of using Dolphin browser. It is great for watching any Flash based videos on the web, and not just those from AssemblyTube. All the other Android browsers I have tried have been poor at showing video, in comparison to Dolphin. Keep up the good work.