Tomorrow night, CNN premieres The Nineties, its latest entry in its series of miniseries documentaries exploring specific decades. Tonight, yet another repeat of The Eighties, in a marathon that includes its two-hour history of TV of the decade, such as the hugely popular finale of M*A*S*H – history which, in turn, includes me, as a TV critic. And in the real Eighties, I was a TV critic too, for, in order, The Fort Lauderdale News, The Akron Beacon-Journal, The Philadelphia Inquirer, The N