How to: Make a Video Autoplay On Your Channel (QUICK TUTORIAL! 2015)

1.  Log into your YouTube Account.
2.  Click the little arrow at the lop left then click “My Channel.”
3.  Click on “Edit Channel Navigation” at the right center of the dashboard.
4.  Enable Browse.
5. Click Save
6. Click “For New Visitors”
7. Choose Channel Trailer

Choose the video you want to be your trailer and then click save.

That is it!

Here is a video which shows you live how to do it on YouTube.