One feature of TV that seems not to appear in the printed form is the re-run.
Whether it be a game or a contest, a documentary or movie TV offers means of retrieval and recovery, both of events, and of the public that went with the event. The print form provides access to those who wish to re-read or study, but those opportunities are only for the specialist, the archeologist and the researcher. For TV, however, there is not past. What it retrieves is the eternal present.