Not very many of the pins have video on them. Most are for shielding, those would be grounded. Cable makers have some latitude in deciding how many, and which, grounding pins they'll use.
<font color=blue>Only a place as big as the internet could be home to a hero as big as Crashman!</font color=blue>
<font color=red>Only a place as big as the internet could be home to an ego as large as Crashman's!</font color=red>