Sophia McShera as Daisy. Photo courtesy Nick Briggs/Carnival Film & Television Limited 2013 for MASTERPIECE

How are you celebrating the premiere of Downton Abbey season 4 this Sunday at 9 p.m.? Why don't you celebrate it with us? You’re cordially invited to join our online watch party that kicks off at 8:45 p.m. right here on this blog. I did this last year and Downton viewers enjoyed it so much that I am bringing the parties back.

Here is how you take part in it. Simply scroll down to the chat box, sign in and start chatting with fellow Downton viewers.

(If you’re on Twitter, you can switch back and forth between our watch party and Masterpiece Theatre’s live event which will feature live tweets from Mrs. Patmore (aka Lesley Nichols). Just use the hashtag #downtonpbs

Let’s make the atmosphere even more festive. If you’re gussied up in your Downton finery, take a picture of yourself and send it to the chatroom. If you’re serving a Downton menu, take pictures of your spread and send it to me too. You can also send it to me via email at newmedia@gpb.org. Just put Downton Abbey Party in the subject line. The best pictures will be posted on this blog.

So are you seriously ready for season four of Downton Abbey season? Make sure you catch up by checking out our special Downton edition of our iPad magazine Your GPB.