I just found interesting to dedicate an entry to a series related to mail and letters. Images are so nice that I couldn't help to post a couple of them. Isn't Jess cute?
Postman Pat is a British stop-motion animated children's television series first produced by Woodland Animations. It is aimed at school children, and concerns the adventures of Pat Clifton, a postman in the fictional village of Greendale (inspired by the real valley of Longsleddale in Cumbria).
Postman Pat was first screened on BBC1 in 1981. John Cunliffe wrote the original treatment and scripts, and it was directed by animator Ivor Wood, who also worked on The Magic Roundabout, Paddington Bear, and The Herbs. A second version of the series was made and shown from 2004, which expanded on many aspects of the original series.
Each episode followed the adventures of Pat Clifton, a friendly country postman, and his "black and white cat" Jess, as he delivers the post through the valley of Greendale. Although he initially concentrates on delivering his letters, he nearly always becomes distracted by a concern of one of the villagers and is usually relied upon to resolve their problems. Notable villagers include the postmistress: Mrs. Goggins, Alf Thompson: a farmer, and the local handyman and inventor, Ted Glen.
In the new series, Postman Pat Special Delivery Service (SDS), Postman Pat has been promoted to Head of the SDS and is now called upon to deliver anything. Each episode follows Postman Pat on a Special Delivery mission, from rescuing a runaway cow to delivering a giant ice cube. In his new role, Postman Pat commutes to the nearby town of Pencaster where he collects his special deliveries from the Pencaster Mail Centre. Postman Pat now has a new fleet of vehicles including a helicopter and motorbike, complete with side-car for Jess.
[Information taken from Wikipedia]