Computers Vs Typewriters on Cable / Satellite TV

I was watching some reruns last night on TV Land which has a series starting April 3.

Here is a clip of the typewriter episode.  I could not find the date and time this episode airs. 

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My Japanese Olympia Typewriter

Hermes 3000

Royal Custom-III

I have been searching for information on the Royal Custom-III I bought at a rummage sale yesterday.  I found 2 references to the Custom-III both with white fronts and nearly identical to the Safari, and I found one reference to a Safari with a black front (forgot to mark the link).   There are a few on Ebay shown as Safari Custom-II with black fronts of a slightly different style (of black front) even among the same model.

Model and serial number are not in the typewriter serial number database either.

Does anyone know the history of the Royal Custom-III?  Best I can find is that it is a 1970s something machine since it has the Litton Industries trademark on it.

SCM Smith-Corona Classic 12