How to put 'ed' into the background using a BASH shell script?

["Scott C. MacCallum" <scott.maccallum@gmail.com>]

Greetings,

I would like to put the command 'ed' into the background using a BASH 
shell script, but so far I have been unable to do this with the following:

#!/bin/bash

ed&

I found this odd, considering that the following command 'ed&' worked 
fine when inputed by hand in a console.

Any ideas on how to make this happen?

TIA