Peppa is 4 and George is 18 months (until the episode where he has his 2nd birthday).
Some of Miss Rabbit's jobs include: supermarket cashier, ice cream seller, museum cashier, school bus driver, train driver, recycling depot manager, ice rink manager, hot air balloon pilot, librarian, rescue helicopter pilot, volunteer firefighter, and Christmas tree seller. Miss Rabbit has a sister, also named Mummy Rabbit, and it is possible they share these jobs.
Due to getting older, Peppa's voice changes throughout seasons of the show.
Peppa Pig is also shown in the USA. The USA version includes american voice actors. The episodes have also been shown in a different order to the UK order and are split across more seasons.
The snorts of Peppa's family have changed during the third and fourth season.