Big Brother/Awesome

Season 6
"Maggie: You sealed my fate.
 * Regardless of what you think about Kaysar Ridha and his game playing skills, his first HOH win was perhaps the biggest MOA the show has ever seen. Not only did he get his biggest competition out of the house, Eric "Cappy" Littman, who had eliminated Kaysar's friend Michael the previous week through exploiting the false rumor that he was a sexual predator, Kaysar also coerced two of Cappy's fair weather allies James and Sarah into joining Kaysar's new alliance(dubbed, "The Sovereign Six", as opposed to the cult like "Friendship" alliance that Cappy was the leader of). Not only that, but he set up his nominations in a way that made it impossible for James to ever appear trustworthy to the other players if he didn't comply to Kaysar's demands. Finally, he verbally owned Cappy's secret partner, Maggie, with the following exchange:

Kaysar: No, I sealed your partner's fate."


 * Maggie ends up winning the next HoH, eliminates Kaysar twice, wipes out his Alliance, then wins the Game. He should've eliminated her and kept the hot headded "Cappy" around.
 * That argument only works in hindsight, since Kaysar had no way of knowing how badly Howie would screw up the nominations in Week 5. Also, Maggie didn't come into her own as a cult leader until after Cappy left. When he was around, he pretty much filled the role as leader of the Nerd Herd, and was also a bigger challenge threat than Maggie.

Season 8

 * Evel Dick (yes, that's how it's spelled) banged pots and pans at two in the morning in the other house guests' rooms so he would go home instead of his daughter.

Season 10

 * Dan was targeted by the entire house on week two. Through brains, deals, and luck, he was able to outlast eleven people who all once wanted him out to not only win, but win by unanimous vote.

Season 11

 * Dumb blonde Jordan goes up to the MMA bully Russell, gets in his face, and yells "SHUT UP RUSSELL! I AM NOT AFRAID OF YOU AND I SWEAR I WILL BEAT YOU UP!" Did we mention she's yelling at a MMA fighter?
 * Jordan's come-from-behind victory. She more or less spent the entire season riding on Jeff's coattails, being picked to be in the final three over Michele because Jordan had shown herself to be easier to beat in competitions. However; she manages to win the final HoH competition without having it be thrown to her. Then she picks the best person to be in the final two against: Natalie, and wins 5-2, only losing Kevin and Russell's votes.

Season 13

 * In a luxury competition, the contestants had to guess a celebrity using a selection of very vague clues. The first clue was several bars of soap. Using some Insane Troll Logic, Jordan immediatly locked in her answer as David Hasselhoff. She was also the first person to lock in an answer. She was right.
 * The Double Eviction and Laser-Guided Karma episode of Season 13. Daniele figures she's out anyways and tells everyone to get Jeff out, since obviously he was the #1 target. Shelly, who had flipped throughout the game, had realized prior to the eviction day that Jeff needed to go if she even wanted a shot at the final two (which fans had been wishing they could tell her all Summer), let alone winning. So even though Daniele is evicted, honestly the best move for the other side, the next HoH win is Kalia's second win, who promptly nominates the #1 targets on the other side, Jeff and Rachel.
 * The person who wins the veto that's clearly slanted towards Jeff is Porsche, who Jeff had been calling out for being a "Floater" who did nothing to deserve the spot in the game, and then his eviction votes were cast by people whom Jeff had referred to as "Floaters"; Shelly, Porsche, and Kalia as the tiebreaker. And the following couple hours, the next HoH win is...Porsche, who had come in second quite a few times in competitions.

Others

 * Daniele winning an important HoH competition, when it was 6-2.
 * Ragan's "The Reason You Suck" Speech to Rachel, in a recent season. Ragan is the reincarnation of Oscar Wilde.

Australia

 * Merlin's eviction. As he walked along the eviction runway, he stuck black tape over his mouth and held up a sign he had hidden in his clothes from the start of the season saying "FREE TH REFUGEES" (the third E had fallen off). He ignored host Gretel Killeen, sat down on the couch, and refused to speak to her for the remainder of the half-hour live show, somewhat screwing the live eviction audience and live broadcast.

United Kingdom

 * Series 1 was rather boring with nobody giving a damn, right up until the moment that one of the contestants was caught cheating. The subsequent grilling by the other contestants was declared up among the greatest TV moments ever, and every series since has been an increasingly pathetic (and spectacularly unsuccessful) attempt to recreate such glory.
 * Series 1: Craig exposing Nasty Nick's manipulation of nominations, which led to Nick getting the boot and ultimately Craig being voted the winner.
 * 2002 Series: Sandy telling Jonny he didn't like him and then jumping over the wall was pretty cool to watch.
 * 2002 Series: Alex Sibley is fondly remembered for hiding behind the bedroom door singing That's The Way I Like It whilst the girls were looking for him.
 * 2006 Series: When Grace threw water over Susie, Aisleyne won a lot of favour with the public by having a go at her.
 * 2008 Series: In the aftermath of an argument which led to Dennis spitting in Mohamed's face, Darnell confronted the housemates on Dennis' side by shouting at them and goading them to square up to him as well. Which they didn't.
 * 2011 Series: Harry spent all of the shopping budget on 500 bananas, much to the amusement of the public and the dismay of Jay.