The season finale of 'Doctor Who' had quite a few fun bells and whistles and enjoyable moments.

But executive producer/head honcho Steven Moffat's inability to stop adding bells and whistles sometimes gets in the way of emotionally resonant moments on this show. By the time the finale rolled around, there was so much business that had be dealt with that much of the running time of 'The Wedding of River Song' consisted of extremely clever but nonetheless exposition-y exposition.

As for the wedding of the title? Well, that was emblematic of what didn't quite work.

Who is River Song and what's her connection to other characters on 'Doctor Who'?

Why do stories have to be told in a linear fashion, and what does "linear" even mean?

Do you have to fully understand what's going on in a story -- any story, even one that doesn't involve alien incursions -- in order to enjoy it?

I discussed all those things and more with 'Doctor Who' executive producer and head writer Steven Moffat in anticipation of the show's Saturday return on BBC America.

Truth be told, I was a bit nervous to talk to Moffat. I'd read other interviews in which he seemed -- well, prickly is the wrong word, but (justifiably) unwilling to suffer fools gladly. And when it comes to timey-wimey stories and the kind of puzzle plots that he sometimes creates for 'Doctor Who,' I don't mind admitting that I can be a bit of a head-scratching fool.

'Doctor Who' returns 9PM ET Saturday on BBC America. Finally.

It feels as though we've had to wait an eternity for the show's sixth season to recommence, and there were dozens of unanswered questions floating around by the end of 'A Good Man Goes to War,' the ripping mid-season finale that aired in June. The good news is, the show's executive producer, Steven Moffat, and star, Matt Smith, both said in recent interviews that all those big questions will be answered by the time the seventh season wraps up Oct. 1. My interview with Smith is below, and I'll post the interview with Moffat soon.

Many of the biggest 'Doctor Who' questions revolve around River Song, a.k.a. Melody Pond, who, it emerged in 'A Good Man Goes to War,' is the daughter of the Doctor's companions, Rory and Amy. Be assured that the interview with Matt Smith below doesn't contain any specific intel about what's to come. But after the interview with Smith, you'll get a River Song-style warning about "Spoilers!" which include the very interesting (and River-centric) title of the upcoming season finale.

'Doctor Who' fans have just about a month to wait before new episodes from the hotly anticipated second half of Season 6 air in the US.

To whet their appetite, the BBC and BBC America have released two new trailers, in which we are told "Something is happening to Time." Uh oh.

Why does the Doctor say his time is running out? Who is Winston Churchill pointing a gun at? Er, did Adolf Hitler just thank the Doctor, Amy and Rory for saving his life? And just why, exactly, is the Doctor trying to make out with Craig Owens (James Corden)?

Watch both trailers after the jump and see what you make of them.