A couple of blog postings about the marketing of HD Radio prompted vigorous debates about the viability of the nascent broadcast technology. Consultant Fred Jacobs critiques the concept behind the new ad campaign created for HD Radio Alliance stations, prompting a pre-holiday venting about all that is wrong with HD Radio. And Mark Ramsey, who predicted two years ago that HD would die on the vine without a better marketing plan, comments on the lackluster sales of HD Radio units [Via PRPD].