Video hosting and incandescent light bulb: what they have in common

1. Step 1. Video hosting — uses — Streaming. Streaming.
2. Step 2. Streaming — is used in — Smart TV. Streaming.
3. Step 3. Smart TV — has part — Pixel matrix (OLED). The screen is a pixel matrix.
4. Step 4. Pixel matrix (OLED) — has part — LED. OLEDs are organic light-emitting diodes.
5. Step 5. LED — is part of — Torch (flashlight). Modern torches use LEDs.
6. Step 6. Torch (flashlight) — has part — Incandescent light bulb. A bulb (today an LED).

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