While the diamond’s shelf-life in the series itself lasted from 1973 to 1980 (for all but one year of Tom Baker’s tenure), it was also plastered on goods from the early ’70s all the way through 1996.
The BBC hired branding consultancy LittleHawk in 2018 to refresh the show’s image with a style that included both the Classic and New Series periods. The show’s decision to revert to an older aesthetic so fast thereafter represents a rejection of LittleHawk’s effort. Not to mention the uproar it will create among purchasers of the show’s flagship Collection Blu-Ray box sets. Who, perhaps, are the true sufferers in all of this, will have to contend with an erratic line of spines running down their shelves once again.