Anyone know of a good Downton Abbey chat room?

My sis was asking me if I know of a good site where her DH can find discussion of previous D.A. episodes. They're both hooked on the show, and he missed the one from a couple weeks ago. He thought there might be a discussion site where he could read some commentary about the various episodes. They lost their daughter to cancer a few years ago (in her mid-20s), and they were really moved by the Sybil story line, so that's why he was especially interested in what transpired as the family was coming to grips with their loss.

TIA!