I love this show! Many elements of "Signed, Sealed, Delivered" remind me of the writing style of the show "Warehouse 13."
* The adventure of discovery while investigating the identity of the sender and recipient, without the macabre.
* The intrigue of how an undelivered letter/package effected peoples lives and the consequences (both good and bad) when it is delivered months to years later.
* The perfect, yet quirky combination of personalities that comprise the team.
* The character development between the team's members.
* The way the undelivered letter/package has a mysterious quality to it, like it's going to change the course of history.
* The rotation of special guest celebrities that come and go from the show, in the form of the Postmaster that changes every couple of episodes to pressurize the plot, the visiting postal official from Washington DC, etc.
* The way the Dead Letter Office's strange warehouse environment, filled with relics and artifacts, is recessed somewhere in the back of the very busy and modern main postal facility.
* The clash between the sacred and ceremonial way the undelivered letter/package is respectfully handled and the often ingenious and resourceful way the mystery is solved, restoring the letter or package to the sender or recipient.
The show is fun, funny, heart warming, mysterious, and geeky. It demonstrates that quality entertainment is possible without gratuitous violence. I look forward to every episode and find it difficult to not watch all of them in marathon fashion.