In the emulator instructions, it says to edit tclient.conf, but doesn't say how. This was actually intentional, as there's more than one way to skin a cat. Rather than edit those instructions, I've created this tread to document different methods of doing this. Feel free to add your own methods below. Here's how I do it.

Firstly, you need the Tivo's IP address, and you need to telnet to that IP address. As this thread is about file editing, I will not document finding IPs, presumably this is documented elsewhere (links will be included here if someone points them out).

Once you are on the Tivo, at the command line, you will want to set the filesystem to read/write mode. This is done by typing "rw" without the quotes, and hitting return. Next, use the joe editor to modify the file. Type "joe /etc/tclient.conf" without the quotes, and hit return. The joe editor has help available by pressing control-H, this should give you the info you need to edit and save the file. Once done, and back at the command line, you will want to set the filesystem back to read-only by typing "ro", again without the quotes. Then reboot the Tivo and continue the emulator setup instructions.

Again, this post is intended to highlight the various methods of doing this, so if you have a different way or wish to comment further with tips, please do so...