DBZ Episode 167
From Dragon Ball Encyclopedia, the ''Dragon Ball'' wiki
The Doomsday Broadcast is the second episode of the Cell Games Saga and the one hundred sixty-seventh overall episode in the uncut version Dragon Ball Z series. The original Japanese title is "Sichoritsu Hyaku-pacento!! Si wo Yobu Celu Geemu Dokusen Nama Hoso" (視聴率100%!! 死を呼ぶセルゲーム独占生放送). The episode first aired on December 2, 1992. It's original American air date was November 13, 2000.
Now Perfect Cell is shown flying through a city looking for the TV station. When he finds it he goes up to the News Room to start his broadcast. Just then something interrupts Master Roshi's fitness show. Perfect Cell. Yamcha and Krillin run inside to hear what Perfect Cell has to say. Perfect Cell says for all of the best fighters in the world to fight him at his Cell Games. Then he blasts a hole through the wall a destroys half the city and says that there’s a sample of what you will be fighting and flies out the hole. Now Future Trunks knew he still had to train some more. But before he could leave Bulma said he should get his hair cut first.