Better idea lost as usual
From 1931, an ad for Talkiola:
A home movie projector all in one box. The image was projected on the front-mounted screen, like a TV. (Television using scanning disc techniques was already well known in '31 but not fully commercial.)
Why didn't this setup continue? When home movies finally became mildly popular in the '50s, this idea was lost. Movies required setting up a separate screen, which rarely worked well in the typical living room.
From the same source, an advertising technique you won't see today: