Just seen posted on MSE so thought I would share here, seems great ! 
pantolive.com/
At the minute they have early bird prices for just £14.97, so much cheaper than normal Panto prices when having to pay £20 for everyone.
A decent cast line up too, including Harry Potter actor Chris Rankin.
Taken from the website:
- The pantomime will be broadcasted completely live! No pre-recording.
- A uniquely interactive experience. We'll bring you into the pantomime from your living room!
- Interactive buttons, live chat, sing-a-longs & a downloadable Panto pack.
Early Bird Pricing - ONLY £14.97 - Limited Tickets Remaining One ticket - watch any show, anywhere in the world.
The Worldwide Premiere - 18th Dec 7pm
UK Matinee - 19th Dec 2pm
The Us & Canada - 21st Dec 7pm EST (Midnight 22nd UK Time)
Australia & New Zealand - 23rd Dec 7pm AEST (9am UK Time)
Christmas Eve - 24th Dec 12pm
You can buy tickets here pantolive.com/buy-tickets