Thank you for your question and welcome to ADHDCentral.com. It is possible that your son is overwhelmed and this tends to catch up with him around 5 pm, at about the same time that his medication is starting to wind down. If you find that allowing him to watch television or play video games for one hour helps him transition from one activity to another, I don't imagine it would be harmful to him.   I am providing you with some links to additional information that may be helpful:   Strategies for Parenting Children with ADHD   Creating a Discipline Process at Home   Games to Motivate your Children   The Out Of Control Child   ADHD in Early Elementary Age Children   I hope this infommation helps   Eileen