The introduction of legislative television as a transparency initiative has been welcomed in an increasing number of democracies. The impact of television cameras on parliamentary behavior, however, has received scant attention in systems where personal vote‐earning attributes are thought to be of little importance (e.g., closed‐list proportional representation). Additionally, studies examining this relationship relied exclusively on over‐time variation in legislative behavior (i.e., before and after the introduction of television into parliament), which arguably has important deficiencies in demonstrating the true effect of legislative television. Capitalizing on a unique quasi‐experimental setting, the present study aims to close these gaps in the literature by analyzing parliamentary activities in Turkey, where the legislative television was restricted to 3 days per week (Tuesday, Wednesday, and Thursday) in 2011 after almost two decades of continuous 7‐day operation. Results based on original data sets of parliamentary activities from the pre‐ and postreform periods (2009–11 and 2011–13) indicate that the varying presence of television cameras exacerbated the effect of electoral and reputation‐building motivations on parliamentary behavior, encouraging electorally unsafe and junior MPs to shift their constituency focus to the televised proceedings. The results offer important implications for the study of legislative transparency and constituency representation in party‐list proportional representation systems.