Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. The application lies within Internet & Network Tools, more precisely General.
From the developer:
WebTV Viewer is a program that is very helpful for Web designers that want to make sure the pages they are creating look good on the WebTV browser. This program allows you to preview any page on your site as if it were being viewed using a WebTV.
You may want to check out more software for Mac, such as MOOS Project Viewer, Project Viewer 365 or Zip View, which might be similar to WebTV Viewer.
Slideshow & Presentation
Streaming Media