I watched the episode "Thine Own Self" and I have a question. Troi decides to take the bridge officer's test after she sees Crusher in command on a night shift. She eventually passes and is promoted to Commander. She is seen wearing 3 full pips and is called Commander, even though Lt. Commanders are often called Commander. Correct me if I'm wrong, but didn't she finish the series and TNG movies as Lt. Commander? And why wouldn't Data, who's a bridge officer, be a Commander too. And yet Crusher is Commander. I'm so confused....help me! LOL
