Try QuiltersTV, they have all kinds of full lenght videos.
I have seen El Burns do mitre corners and it is pretty simple but you will need extra fabric. Its to hard to explain,you do need to watch it.
If you are doing binding its a different process than borders.
I just watched her videos doing a jewel box quilt. At the end of part 2 she does a binding.
Its in the series of the week to the right side of the screen.