"To watch the commercials" means to pay attention and observe the advertisements that are shown on television or any other platform during breaks in a show or program. Full definition
When I was five, my heart took flight while I was watching a commercial for a home remedies book. (beyondthepeel.net)
It's fascinating, but this half - second will give an accurate insight of how a person feels when watching a commercial or thinking of a product. (entrepreneur.com)
You can do this while watching commercials, waiting at red lights — nobody will know. (health.com)