On April 30, 1992, the Nickelodeon Time Capsule was buried near the Slime Geyser. The burial ceremony was broadcast live on Nickelodeon and hosted by Mike O'Malley of "Get the Picture" and Joey Lawrence of "Blossom", with an appearance by Dr. Emmett Brown of "". It contains items deemed important to the children of 1992 as voted upon by Nickelodeon viewers. These items included a Barbie doll, baseball, books (comic book, endangered species book, history book, phone book, TV Guide and World Atlas), bubble gum, CDs (MC Hammer and Michael Jackson), hat featuring the catchphrase of Joey Lawrence, news reports (1991 Soviet coup d'état attempt, Dissolution of the Soviet Union, &lt;a href="Epidemiology%20of%20HIV/AIDS"&gt;Epidemiology of HIV/AIDS&lt;/a&gt; and Operation Desert Storm), Nickelodeon Gak, "Nickelodeon Magazine", Nintendo Game Boy, pencils, photos of things too big to fit inside (bicycles, cars, celebrities, planes, politicians and trains), piece of the Berlin Wall, Reebok Pump sneakers, Rollerblades, skateboard, t-shirt featuring the Nicktoons characters "Ren and Stimpy", Twinkies, and VHS movies ("Back to the Future" and "Home Alone"). The final items put in the capsule were a tape of the event itself and the camcorder used to record it.