Don't come to television for the truth. TV's a goddamned amusement park. We'll tell you the good guys always win. We'll tell you nobody ever gets cancer at Archie Bunker's house. We'll tell you any shit you want to hear. Paraphrasing Howard Beale, Paddy Chayefsky's character in Network (Chayefsky, 1976). I opened this chapter in the second edition of Bryant and Zillmann's Media Effects series with the same quote. I retained it for this updated volume because it still rings true, despite some significant changes in the media landscape. Although in the movie it is unclear whether his words were those of a madman or a sage, few would be likely to question Howard Beale's claim that television presents a distorted view of reality. Cer- tainly, one can argue that aspects of media content, format, and presentation have changed significantly in just the last few years, with a rise in so-called "reality program- ming," made popular by the initial success of programs such as Survivor, and more recently by programs such as American Idol. Yet charges such as scripting of outcomes of competitions, selection of contestants based on audience appeal, and product placements have undermined the claim that these programs present the world as it really is. But even if most people do not question the premise that typical television fare distorts reality, what they do question is if the distortion has any effect, and if so, why and how. These interrelated questions about the why and how of media effects lie at the heart of scholarly debates and critiques of media effects research. Over the past few decades, there have been two persistent criticisms. One is that the evidence accumulated to date has provided little indication of sizable media effects on viewers' thoughts, feelings, or actions, in spite of a generally held "myth of massive media impact" by many researchers (McGuire, 1986). The second criticism is that it has for the most part lacked any focus on explanatory mechanisms. That is, media effects research has been primarily concerned with relations between input variables (e.g., media information and its characteristics) and output variables (e.g., attitudes, beliefs, behavior), with little con- sideration of the cognitive processes that might mediate these relations (Hawkins & Pingree, 1990; Reeves, Chaffee, & Tims, 1982; see also Wyer, 1980).