The television talk-show genre is filled with historic success stories – and more than a few flops. Of course, no one will likely forget Johnny Carson, David Letterman, Jay Leno, Oprah Winfrey, Larry King or, yes, even Howard Stern and Jerry Springer. Nor will they likely forget Ellen DeGeneres and Conan O'Brien, who both recently announced they're ending their talk shows after 18 and 10 seasons, respectively (O'Brien's talk show career will live on via an HBO Max weekly variety series). And who knows … perhaps today's "flavor-of-the-day" shows (we mean you, Drew Barrymore and Kelly Clarkson) may also go on to stand the test of time. Read on, though, for some of the countless shows you may have forgotten.