Dirty politics is a growth industry with few happy customers. In the run-up to Super Tuesday, television viewers nationwide had to endure an onslaught of negative and deceptive political ads.

For many in key primary and caucus states that meant sitting through up to 12 such ads an hour. And the vast majority of these ads went on the attack: The three political action committees buying the most television time this election season have spent more than 98 percent of their money on ads that discredit one or another candidate, according to Kantar Media.

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In this era of deceptive political ads, TV viewers don't receive enough of the antidote: the kind of hard-hitting reporting and election coverage that would help local voters separate political fact from fiction before they pick a candidate.