Most media that people consume exhibit certain political biases or slants. However, many citizens either do not understand or underestimate the slant of the media they consume. This study proposes a new experimental design to investigate whether making media slant more evident affects how citizens perceive news coverage and update their political beliefs. Our experimental intervention fielded on an online survey platform in Russia exposes respondents to a substantial amount of news coverage by major pro-government and independent television channels and, at the same time, makes respondents more attentive to the slant of news reporting. Our panel design allows us to examine the subsequent impact of the intervention on respondents' perceptions of media, willingness to consume particular media outlets, and evaluations of the economy and government performance.