I want to know the answer to the following question:
What's the name of the feature on the front of the front of the NES test device?
All the background I'm provided with is that "The NES Test Station's front features a Game Pak slot and connectors for testing various components (AC adapter, RF switch, Audio/Video cable, NES Control Deck, accessories and games), with a centrally-located selector knob to chose which component to test.". Is that enough to answer the question?