Doraemon (1979)

Memories of Grandma (1) (1x43)

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Looking through some old photos, Nobita is very upset as he misses his (dead) grandmother who made a lot of fuss over him. Against his will Doraemon takes them back 8 years. Nobita upsets his mother who does not recognize him as her 3 -year-old son. This episode is later remade in 1986 as "I Love Grandma."