[mythtv] Why do we reject previously shown dates before 1940

[Gary Buhrmaster]

On Sun, Dec 6, 2020 at 2:46 PM Paul Harrison <mythtv at mythqml.net> wrote:
>
> Anyone know why we explicitly reject previously shown dates before 1940?
>

My guess would be that that is because
commercial TV did not start in earnest
until 1938, and I seem to recall that it
was generally accepted that only some
manual film capture of those early
productions (not of the TV screen, of
the actual production) still exist, making
them movies, not broadcast recordings,
as the Kinescope (which recorded the
broadcast on film from a TV monitor)
used to record broadcasts did not exist
before the 1940's?

While technically a radio drama called
"The Queen’s Messenger" was adopted
for TV and broadcast on WRGB in
Schenectady NY in early 1928 as an
experiment, it was received by only a
small handful of experimental TV sets.

If someone has an actual TV recording
on the experimental TVs of the time
that is interesting.



For movies, as I recall, the grabbers
typically store the movie date in the
program airdate (year) field, but that
field is not carried over to the recorded
table.  It would seem that if carrying
the movie year is important, that
copying the movie year to the
recorded table would be a feature
request.