I have something called a "WebTV Viewer". It is a simulator that is supposed to show me how webpages will appear on WebTV. The most recent version of this simulator was written in 2001, so I don't know how current it is in comparison with what you are viewing. The WebTV Viewer DOES show the "Reply, Return to Index,..." selections.
Unfortunately, because of the number of users with WebTV, I am unable to provide a webpage setup specifically for the WebTV browser.
If anyone else using WebTV on this site has suggestions, please tell me.
Jim