Remember how Arsenio Hall is coming back to TV? Well, he is, with a syndicated talk show that's scheduled to air in the fall. It's not clear yet exactly how the syndication will shake out in individual markets, but what is clear is that this new promo really tests the limits of cultural sentimentality. Oh, you miss 1992? You miss funky Bill Clinton? Do you miss that woof-woof thing? How about the arm gesture? Huh? Where's your nostalgia now?