TD Garden is a sports stadium in Boston which serves as the home of the Boston Celtics of the National Basketball Association and the Boston Bruins of the National Hockey League. It replaced the Boston Garden, a separate stadium that was demolished in 1998.
In "Fecal Matters", Peter plays imaginary basketball in an empty TD Garden during a flu epidemic, pretending to play for the Boston Celtics. He fantasizes about the team being down by one with a chance for him to make a game-winning shot before accidentally kicking the ball out of bounds.