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The Tsuranga crew used comm dots to communicate on great distances. (TV: The Tsuranga Conundrum)
The Thirteenth Doctor and Team TARDIS later used them while they investigated the Praxeus virus. (TV: Praxeus)
The Tsuranga crew used comm dots to communicate on great distances. (TV: The Tsuranga Conundrum)
The Thirteenth Doctor and Team TARDIS later used them while they investigated the Praxeus virus. (TV: Praxeus)