TV-94B is a Separatist T-series Tactical Droid serving as General Grievous' new second-in-command following the destruction of his previous Tactical Droid TV-94 and a minor antagonist in the Star Wars: The Clone Wars cartoon, appearing in the episodes "ARC Troopers" and "A Necessary Bond".
TV-94B was assigned to General Grievous following the destruction of his previous Tactical Droid, TV-94. He took part in the Battle of Kamino, overseeing the space portion of the battle.
"A Necessary Bond"
TV-94B later assisted General Grievous in the his invasion of the planet Florrum. After their forces took control of the base of Weequay pirate Hondo Ohnaka's, TV-94B oversaw the dismantling of the pirate gang's equipment. When Ohnaka's pirates teamed up with a group of Jedi younglings led by Ahsoka Tano to fight the Droid Army, Grievous ordered his tactical droid to open fire on the base to bring it crashing down on their enemies.