Ep. 31: Nobita uses a time phone to swap items for antiques, causing chaos for his family.
Aired on May 7, 1979

31
Jealous of Suneo's antique collection, Nobita asks Doraemon to use a time cell phone to exchange modern items for antiques from a 22nd Century shop. Nobita misuses the device, causing his family's possessions and house to shift into earlier time periods. Doraemon attempts to correct the situation, but the family ends up with a 22nd Century house plagued by automation issues. During the chaos, Nobita is left completely naked as his clothes disappear. This episode was remade in 1986 as "The Time Receiver."
Episodes
- Ep. 27 · Gian Uses Voice-Storing Candy for Televised Youth Singing Contest
- Ep. 28 · Doraemon Falls for a Toy Cat and Uses Future Tech to Make It Real
- Ep. 29 · Gian sends toy soldiers to attack anyone angry with Nobita while Doraemon is busy.
- Ep. 30 · Doraemon uses a cloud machine to help Tzo obtain fish flags
- Ep. 31 · Nobita uses a time phone to swap items for antiques, causing chaos for his family.
- Ep. 32 · Doraemon invents grasshopper-like apology device for Nobi's false accusations
- Ep. 33 · Doraemon provides Nobita with a magical paper craft book containing functional items
- Ep. 34 · Nobita and Doraemon travel to the past to identify the girl who gave his father chocolate
- Ep. 35 · Doraemon's Magic Flute Causes Nobita to Make a Thief Act Opposite