Downton Abbey has come to an end, and with it, so must our blissful immersion in the intricate lives of the upstairs-downstairs characters presented on this PBS Masterpiece. I don’t know about you, but I haven’t had so much TV fun on Sunday nights since Eastbound & Down wrapped up its run.

The final Downton had more twists, turns, and fraught emotional moments than an entire season’s-worth of American Idol. But I was not prepared for what a cliffhanger the concluding installment proved to be. The announcement of a world war certainly threw one household into frozen shock, didn’t it?

I should have written “multiple cliffhangers” just now. Were you as startled as I was at how many plot threads were left to dangle, unwoven into the conclusion?

So many questions left unanswered. Among them:

• Will Lady Mary and cousin Matthew somehow overcome their differences (in frame of mind; in geographical distance) and come together, stepping adroitly over the body and memory of Mr. Pamuk?

• Will the noble limp, Mr. Bates, unite with his soul-mate, the maid Anna? (What about that long-lost wife of his?)

• Is the adorable footman William doomed to be a World War I casualty?

• Why did Lady Rosamund play such a suddenly prominent role so late in the proceedings?

• Will the Dowager Countess of Grantham recover sufficiently from her rose-petaled humbling to let loose further thunderbolts of sarcasm and wisdom?

It’s been reported in the British press that Downton writer Julian Fellowes is feeling the heat to get a move on with the series’ sequel. He’d better giddy-up. The sequel is scheduled to begin filming next month.

What did you think of the final installment of Downton Abbey, and how do you think some of the plot lines I’ve mentioned here should be resolved?

Twitter: @kentucker