I think know what you're getting at.  I'm thinking of the scene where
the Tramps supervisor is ordering him to get back to work.  The supervisor
is, well, supervising via a large screen monitor.  Live video instead
of rebroadcast video.
A sidenote:  I saw Attenborough's _Chaplin_ last night.  Incredible!
On Sat, 1 May 1993 09:44:00 EST Den' Raphaely said:
>Hello, Daryl -
>> Could Chaplin's _Modern Times_ be considered as a video-within?
>It's so long since I saw it that the film of my memory has decayed. Of
>course, they didn't have Video in those days, but what is the scene you
>are thinking of?