Analog television is no longer on the air in most countries, but Extended Data Services (XDS), time signals, closed captioning, teletext, and even web pages may be lurking on old videotape recordings of it, if you have equipment capable of decoding them.
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rpm1200 was able to get the Auto Clock Set feature to work using the method I showed: https://www.youtube.com/watch?v=sF5_cbvRJMY
Time flow:
0:00 Introduction
1:34 XDS
5:32 Auto clock set
10:24 V-Chip
12:42 How it works
16:10 Teletext & closed captioning
17:05 Intercast & the HubCap
#RetroTech #VHS #ClassicTelevision