"Tommy's First Birthday" is the first official episode of the animated television series Rugrats. It originally aired on the television network Nickelodeon on August 11, 1991, during the series' first season. In the episode, Stu and Didi strive to make Tommy's first birthday a memorable one. They do, but under the wrong circumstances. Meanwhile, Tommy wants to eat dog food so he can be just like Spike, eventually selling the other Rugrats on the idea.