A quick recommendation before I write something more substantial.
Some Nativity-themed radio comedy from the BBC, available on their 7 day Listen Again facility:
The National Theatre Of Brent’s Messiah (2006 Radio Version)
Brilliantly silly and frequently rather touching, the Nat Theatre Of Brent’s style consists of two grown men acting like pompous schoolboys; specifically a swottier boy bossing about his more highly-strung best friend. Full of delicious malapropisms and general tutting at each other, the nearest point of reference is the Molesworth Books. An absolute joy.
