Update: Also the Sonic Society have a special "Jack and Shannon Christmas Card" with an extra special bonus for us Firefly fans!
If you're interested in old time radio shows there's also a list of episodes with Christmas themes to download for free at Old Radio Fun, with shows ranging from classic, to religious to super-hero and fantasy.
Of course the BBC has many special seasonal programs including
A ghost for Christmas
BBC7, 20th-21st Dec
Childrens ghost stories.
Adrian Mole at Christmas
BBC7, 24th-26th Dec
Adrian Mole's Christmas diary.
Jennings at School - Happy Christmas Jennings
BBC7, 24th Dec
The late Jennings author Anthony Buckeridge appears as Mr Wilkins in a seasonal dramatisation of life at Linbury Court School.
Hercule Poirot’s Christmas
and
The Adventure of the Christmas Pudding
BBC7 25th Dec
Seasonal Poirot mysteries by Agatha Christie
The Haunted Man and the Ghost's Bargain
BBC7 27th Dec
Charles Dickens' last Christmas story is a vivid account of a man tormented by his past.
MR James at Christmas
BBC Radio 4 24th-25th Dec
Derek Jacobi introduces five new chilling dramatisations of MR James' ghost stories. MR James (1862-1936) was arguably the finest writer of ghost stories that England ever produced, influencing the likes of HP Lovecraft, Ramsey Campbell and Stephen King. Warning: apparently these are very scary!
Looks like there's lots of audio fun out there to share with/escape from the family!
Happy holidays!