I was also reminded of The Gentlemen, who were damn creepy.
Still thinking and I want to re-watch it.
Anyone notice the telephone blooper in Nixon’s office? Touch tone phones didn’t come out until at least 1975. That should have been a rotary phone in the oval office.
My parents had rotary phones until at least 1983. The dorm phone in college was touch tone in 1981. I recall thinking it was so cool and modern. 
Our floor had three we could use.
I just noticed the number on the bus Amy and Rory were on.
I’m re-watching it right now. Great dialog:
River: He’s interacted with his own past. It could rip a hole in the Universe.
Amy: He’s done it before!
Rory: …and in fairness, the universe did blow up.
Incorrect. AT&T introduced them in 1963.
I checked, and Nixon had a Touch-Tone phone with five lines.
10 times before he met Amy. (Plus an aborted start of one.) The tenth being IMMEDIATELY before meeting her.
Aside from the 200 year older version’s aborted regeneration, he hasn’t regenerated since meeting her, let alone before the wedding. Thus still being Matt Smith.
Not a regeneration, but a re-boot. The Tenth Doctor went through the crack in Amy Pond’s wall, presumably into a different universe. The one who appeared at Amy’s wedding was drawn from her memories.
Well, this first time viewer liked it a lot. I’m somewhat vaguely familiar with Dr. Who…know he’s a time traveler, know about the Tardis being bigger inside that it is outside, know Daleks are bad guys, know he’s got a sonic screwdrive that apparently contains neither vodka or orange juice, but that’s about it.
Still, with that background, I thought the episode provided enough exposition to get the gist of the show. And I’m willing to hazard a guess that the person in the spacesuit at the lake was…The Doctor. Probably an earlier or later model, but still The Doctor.
I was thinking it was River, as a little girl. Except the spacesuit person seemed to be using the same weapon as the Silent. How do we know they’re the Silent, btw? They aren’t. Silent, that is. They can talk and make rattly noises. 
The Silence, not the Silent. As in ‘The Silence will fall’.
And we know via Word of God. (Or at least Word of Doctor. I’m sure I’ve seen something quoting Moffat on this, but here’s Smith talking about them.)
The BBC websites says so, and so does Arthur Darvill.
I still can’t believe I recognized Mark Sheppard (the ex-FBI agent) from the only other thing I can remember seeing him in–the “Fire” episode of The X-Files, almost 20 years ago, when he had more hair, less waist and used an English accent. (I now read he actually is English, which explains why his accent grated a lot less than some of the others in that episode. I also read he’s been in a load of stuff I should have remembered him from, but didn’t.)
I’ve been rewatching, and something else occurred to me that I don’t know if anybody’s mentioned thus far.
When the 909-doctor (as in his age) is talking in the diner with the other three, and asks about who recruited them, the man who trusts him more than anyone else in the universe, River answers ‘Spoilers.’ Now, this has a very conventional meaning for her, it’s not just “I have a secret, and I’m not going to tell you.” It’s “I can’t tell you about that, because it relates to stuff about your future that you don’t know yet.”
So that really leaves two possibilities - the one that we’ve seen that the recruiter is the Doctor from the future, or that he’s somebody that the Doctor will meet in the future, but that River cannot begin to explain who he is without bringing up their future association or otherwise changing his timeline.
I do wonder if he thought of the possibility that it was himself, didn’t want to ask directly or mention the idea out loud, but was trying to falsify the hypothesis when he threatened to take everybody back home instead of going to 1969.
I’m also wondering if River and the older Canton were somehow coached - Canton says “I won’t be seeing you again… but you will be seeing me.” which sure is skirting the line of “acceptable spoiler”.
The Tenth Doctor was David Tennant, who never met Amy Pond. Matt Smith is the Eleventh Doctor.
Yeah, it seems like he would have to be pretty, well, thick not to at least suspect it. Both Amy and River basically implied that the sender was somebody they trusted more than the Doctor. And Amy promised she wasn’t being coerced.
So who would Amy and River trust more than the Doctor? The Doctor, perhaps?
…suggesting that we make this the official UK Pace thread for this season: anyone object?
UK and US, since the two countries are now only 1 day apart. Agree?
I’m pretty sure the BBC, Space, and BBCA are all airing the shows at approximately the same time, right now, so the UK, Canadian, and American pace will match up, maybe a day late for the US (BBCA seems to be showing episode 2 on the first, the 30th having another airing of The Impossible Astronaut).
The first episode was shown on the same day in the US and the UK.
BBC-America will air the second episode this Saturday night, April 30, at 9pm.