Half a Life - S4-E22
Corrected entry: When Lwaxana is in the transporter room demanding to transport down to the planet, O'Brien leaves Lwaxana and Troi alone. Before he does, he enters a code to lock the transporter panel, and the word LOCKED appears inside a red rectangle. At the end of the scene, when the camera pans out, the word LOCKED is no longer there.
Correction: The word LOCKED appeared to tell O'Brien that his command was carried out. Then the label disappears. Just as when I lock my car, the indicators all flash once, and then turn off.
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