"Doraemon" has been broadcast on TV Asahi for thirty years, but few people know that "Doraemon" originally aired on Nippon Television. However, since the Nippon Television version only ran for half a year and was hardly ever rebroadcast afterward, it is referred to as the "Old Dora," "Nippon Television Dora," or the "Phantom Doraemon." The Nippon Television version of "Doraemon" aired from April 1 to September 30, 1973, every Sunday at 7:00 PM. However, due to strong competition from rival programs, Doraemon's ratings struggled to improve. In an attempt to boost viewership, the production team turned Gachako, a robotic duck that only appeared five times in the original manga, into a regular character and even replaced Doraemon's voice actor. While these measures did help raise the ratings, and there were plans to continue broadcasting for another season, the production company behind the anime, Nippon Television Animation, faced financial difficulties. The company's president fled, and by the time the final episode aired, the office had been completely cleared out, highlighting the dire situation. As a result, the broadcast of "Doraemon" on Nippon Television came to an abrupt end. On September 30, 1973, the 52nd segment of the 26th episode, "Farewell, Doraemon," marked the final broadcast of "Doraemon" on Nippon Television. In that episode, a small yellow bird flying away was inserted as a symbol of farewell. Additionally, the end card, which originally read "See you next week," was changed to "See you next time."