PasswordProtectTiVoWeb
From NLTiVo
Log into your TiVo via your favourite mechanism, open up the file /var/hack/tivoweb-tcl/tivoweb.cfg. You'll see something that looks like:
UserName = Password = Port = 80 Prefix = Theme = DescriptionHover = 1 MultiDelete = 1
Set the username/password and do either a quick or a full reload. Voila!

