Hi! I'm not sure if you noticed, but we no longer use talk pages here (please take note of the reminder on all of our talk pages, such as this, saying that existing ones remain for archival purposes). In the future, post a thread on the Forum instead to start a discussion. Thanks!
The way it's *supposed* to work, if starting a discussion on a specific article, is that you can just start it from the bottom of the page, with a "Start discussion" button. However, right now that's only appearing on pages that *already* have forum discussions (see the bottom of Fran Brill, for example; that button's supposed to be on all pages). So it's more complicated right now.
Otherwise, just start a new thread (most will probably be Article Content board; General discussion is for more "Hey, neat Muppet news!" sort of threads or broad "Who is this?" questions, and Wiki Administration for tech issues, layout, etc.) and use "topics" to link to an existing page or character when applicable.
Just wanted to chime in here. In the recent podcast interview with Charles Grodin, Grodin says that he *thinks* he did the singing, but couldn't actually remember. It certainly does sound like him, but I don't personally think that's enough to say that it definitely is.