This study tested the claim that television viewing reduces preschoolers' perseverance, increases their impulsivity, and induces restlessness. In the first of two laboratory visits with a parent, 328 5-year-olds were given the Peabody Picture Vocabulary Test. During the second visit, the parent completed the Parent Temperament Questionnaire and the child worked on the Banta Replacement Puzzle and the Kansas Reflection-Impulsivity Scale for Preschoolers (KRISP). Children were coded for time to first look away from the Banta, number of looks away, and total time on task. Between the visits, the parent completed a television viewing diary for the child. Programs listed in the diaries were divided by coders into 17 categories. Results indicated that there were no correlations between the perseverance measure of the Banta puzzle and children's viewing of programs in any of the 17 program categories. Nor were there any correlations between children's viewing and impulsivity measures from the KRISP. Total weekly amount of children's television viewing was positively associated with the level, frequency, and tempo of children's physical activity. A list of 24 references is included. (BC)