The syndicated series, as shown in the United States, is a potpourri of segments from previously aired versions of the show. Prior to a 1994 remaster, each episode included a "teaser" at the top of the show, asking viewers to stay tuned for a clip from "today's four-part story." (This originates from a 1969–1973 NBC Saturday morning rerun version of the show.) However, never more than two parts of the Underdog stories were ever shown in any half-hour program. Prints of such would either be followed by a closing and credits or no credits at all. The closing (which showed the first portion of a variation of the Underdog theme showing a giant terrorizing the city with George S. Irving, the series narrator, saying, "Looks like this is the end! But don't miss our next Underdog Show!" in place of the theme music) followed by the end credits (re-edited from the cast credits for Underdog and Tennessee Tuxedo), originated from a 1965 repackaged syndicated series, Cartoon Cut-Ups, which originally featured Underdog, Tennessee Tuxedo, and Commander McBragg. For many years starting with NBC's last run in the mid-1970s, all references to Underdog swallowing his Super Energy Pill were censored, most likely out of fear that kids would see medication that looked like the Underdog pills (red with a white "U" on them) and swallow them. Two instances that did not actually show Underdog swallowing the pills remained in the show. In one, he drops pills into water supplies; in the other, his ring is damaged and he explains that it is where he keeps the pill—but the part where he actually swallows it was still deleted. Most stories had multiple parts, but the first four were stand-alones: "Safe Waif", the pilot, featured a rescue from a bank vault, but no villain. Underdog is shown causing major destruction while trying to help people. "March of the Monsters", the first appearance of Sweet Polly Purebred, has giant robots running amok. "Simon Says" is the first appearance of Simon Bar Sinister. "Simon says HOLD IT!" is the maniacal refrain, as Bar Sinister uses a weird camera to turn his victims into full-sized, two-dimensional photographs. "Tricky Trap by Tap Tap" is the epilogue to the multi-part story "From Hopeless to Helpless" featuring Riff Raff. Reruns of the show aired on Nickelodeon from 1992 to 1994, Cartoon Network from 1996 to 1999, and on Boomerang from