If you had a VCR, video game console, or computer connected to your TV via RF, in North America it was usually on channel 3, and sometimes on channel 4. But why those two channels? With a little knowledge of television broadcasting history and electronics, it's actually not that hard to figure out.

Time flow:
0:00 Introduction
2:04 Why not UHF?
3:31 VHF Low vs. VHF High
6:07 TV station allocations
8:04 Channels 2, 3, and 4
9:37 UHF modulators
10:15 The forbidden SDI

#CRTgaming #RetroTech #VHS

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