They have to stand up to scrutiny and criticism. Active TV is a passive medium. Viewers sit in front of the screen while sounds and images wash over them. The broadcaster decides what they see and when they see it. TV purports to provide information, but what viewers mostly get from TV is emotional impressions.
Users decide what they see and when they see it.
The web invites reflection and analysis. Synthesis Let's look at how these characteristics change the dynamics of a hypothetical race. Candidate Smith promises to cut taxes, increase spending and balance the budget. Candidate Jones says that's nonsense. The candidates' statements are reported on the evening news as a pair of sound bites.