It just doesn’t get any better than this. The once proud and haughty anchorman — heir to Walter Cronkite — is suing his former bosses at CBS for $70 million dollars. The former “Tiffany” of network news has been consistently scraping the bottom of the evening news ratings barrel with its disastrous choice of Katie Couric as anchor. Now they have to contend with this pathetic has-been whose ego knows no bounds.