How can I remve Leopard 10.5 off of my 1st Gen Apple Tv and restore it back to factory settings?

I purchased an Apple Tv with Leopard loaded on it. Its running slow and the screen has dots all over it. How can I remve Leopard 10.5 off of my 1st Gen Apple Tv and restore it back to factory settings?

It’s likely the standard Apple TV software was removed in order for OS X 10.5 to be installed.

Unfortunately this means the Apple TV drive will need to be setup from scratch as described here.

http://wiki.awkwardtv.org/wiki/Prepare_a_Hard_Drive