Edit Custom Name for my DTV Stream box

Yes, you can edit the name.  All you have to do is go into settings.  This is how you do it.  On your remote control hit the button that looks like a house.  Then go down to settings all the way at the bottom.  Then once in Settings, you will need to go down to System and then go to Device Preferences.  Once in Device Preferences then select About then you will select Device Name.  Once you select that it will ask if you want to rename your Directv device then hit change. Then you can make your changes. Hope this helps!

Thanks! - I will head home and try it.

You're welcome!