Reward Challenge
There's eight people left, so it's about time for MB to pull out the trusted old gimmick of having the suckers compete to hear words from their families.  Sounds like videos from home is the reward, except the preview shows an actual film projector.  So it could be just about anything.  The previews show the challenge to be an obstacle course, which looks quite similar to the "Paired Off" challenge from Survivor 2.  In that, pairs of people competed in two-team heats, then the two winning teams faced off for the reward.  This was one of the best challenges that season, because Colby threw Jerri over a wall, Jerri hallucinated that they were on a honeymoon, and Colby almost got Survivor sued by Australia, by stealing protected coral.  Anyway, the only team we see here is KimP and Tom (Fig. 1).  We can tell it's Tom, because of the whitish brim on his buff (Tom's personal style).  The only other competitor shown is MamaKim.  So who is that spreading relish on the hot dog (the "dinner" part of the title, and part of the reward, Fig. 5).  We think it's Brandon, but it's possible that it could also be Tom.  The TV preview shows slapped-together-looking "frames" from the movie, which appear to have the letters "R" and "D" on them (Fig. 6).  Could this be a movie from home, perhaps with the winner's name written in pen at the start of the reel?  Or are the letters on the film just part of the written word, "reward"?  Brandon win? *Cough* ignore that other movie stuff *cough*

Immunity Challenge
No obvious previews, but at least Lex is painting something on his torch (to match last week's bogus necklace shot, maybe?). That's about all we have to go on.  On the other hand, MamaKim and Ethan are high-fiving about something, while KimP has her hand over her mouth.  Both Kims are dressed differently than at the RC (although KimP is wearing the same top as when she's reading the RC treemail), and both appear to be holding slips of paper. Could this be right after they pick RC teams, and MamaKim scores Ethan, while KimP is horrified to be anchored with Tom?  Since this shot is most likely RC, we have no info whatsoever about IC, so we'll pick Lex wins

Boot
    Okay, we'll play spoiler roulette this week.  Lex is toast unless he wins immunity.  But that doesn't fit "betrayal," even if his every Boran votes against him.  That's more of a mutiny.  Plus, the necklace-on-Lex's-torch picture had to come from somewhere.  So Lex either wins immunity, or he walks on water, and the remaining survivors bow down before him in worship.  Lex is safe.  Then there's the good old CBS-registered "nickname" domain names, all of which were registered after this episode (August 7th) - littlebitpower, bigtombuchanan, t-birdcooper, mamakimjohnson. So we'll wager that CBS would not have spent the cash to register them if they were not still on the show.  KimP, Teresa and MamaKim are safe. Tom should be as well, even though he's the logical target if Lex wins immunity, because he has three votes against him, trumping any Samburu. But the domain registration is a bit odd, and one of his neighbors claims he made the final four, and got to contact home as a reward (she has since deleted her posts on EZ).  We're wary of both these "spoilers," but we'll give Tom a bye this week.
    That leaves Brandon, Ethan and Frank.  This must be where the betrayal comes in.  Frank was invisible in episode 8.  So he's probably safe, although it's not out of the realm of possibility that Brandon would unite with Boran again to oust him.  But we think Brandon is smarter than that.  Brandon, however, was very, very visible in ep8.  But he's only just emerged as a focus, although he did make the horrific misstep of saying he was going to the final four to the voting booth camera.  Not good Survivor karma.  On the other hand, Ethan is looking an awful lot like Colby, and he said he would never forget his reward in Ep.8, no matter what else happens to him in the game.  Foreshadowing?  If Lex wins immunity, could the four Samburus and one Boran seize the opportunity to boot Ethan?  One way for this to happen: MamaKim, sensing she's number four in the pecking order, aligns herself with Frank and Teresa in a final three pact, and jumps ship (the "betrayal" in the title).  A Brandon boot requires the Borans to realize he's switched sides again, and one of the Samburus not to trust he's actually back.  Both Ethan and Brandon are possible.  But we'll throw caution to the wind, and pick the guy who's being "bugged" in the previews: Ethan. Our logical side says it's Brandon, though.