Background: A pre-experimental study was conducted to evaluate the effectiveness of a planned teaching program on parents' knowledge regarding screen time and its effect on children's behavior in a selected PHC area, Bengaluru Rural, The study aimed to assess parents' pre-test knowledge, evaluate the effectiveness of the intervention, and determine the association between pre-test knowledge scores and socio-demographic variables.

Materials and Methods: A pre-experimental one-group pre-test post-test design was used. A total of 60 parents with children aged 6-12 years were selected using a convenient sampling technique. Data collection tools included a demographic proforma and a structured knowledge questionnaire. The planned teaching program covered screen time definitions, effects, and preventive measures. Data was analysed using SPSS version 20.

Results: Data analysis using descriptive and inferential statistics showed a significant improvement in knowledge scores. The mean post-test score (21.5±2.62) was significantly higher than the mean pre-test score (9.417 ±3.19), with a paired t-value of 22.24 (p<0.05), indicating the effectiveness of the intervention. No significant association was found between pre-test knowledge scores and selected demographic variables except for monthly income (p<0.05).

Conclusion: The study demonstrated that the planned teaching program significantly improved parents' knowledge regarding screen time and its effects on children's behavior. These findings emphasize the need for ongoing parental education and community health interventions to promote healthy screen habits.