Dragons' Den/YMMV

Funny Moments:
- In the first episode of Series 7, there was a product so good that all of the Dragons started negotiating. One pair of Dragons then asked if they could "go to the back of the room to discuss for a moment", jokingly echoing the request they had heard frequently for six years.
- One pitch accidentally dissolved into Toilet Humour, which made them all break down in laughter (Season 1 Episode 6, "Toilet Snake").
Seasonal Rot: Some of the original UK Dragons left when the producers wanted to focus less on encouraging entrants to make their currently half-baked but possible ideas into viable opportunities and more telling them they were idiots. More recently, the show seems to have reached something of a compromise — the Dragons encourage products that they aren't prepared to invest in but still feel to have some potential, while saving their scorn for truly stupid products.
The Scrappy: A lot of people find narrator Evan Davis very irritating, and he was mocked thoroughly in The IT Crowd. This probably has to do with the fact that most of his narration consists of stating the obvious (which is presumably the fault of the producers), though his style hasn't exactly endeared many viewers.
Tear Jerker: The Canadian version has an episode where a recent immigrant from Eastern Europe pitches a foam bath blanket. She wants to sell it in Europe, where hot water can be pricey; people would use the blanket to stay warm in the tub without having to add more hot water. One of the Dragons, Robert Herjavec, is initially interested in the idea due to his Croatian origins and rags-to-riches immigrant background. However, when the woman suggests a retail price in the $30-$40 range, his smile drops. Soon after, he starts telling an emotional story about how one day, when he was a child, a salesman talked his parents into buying a vacuum cleaner for $400. Since his family had arrived in Canada not long before with only $20 saved up, the purchase nearly ruined them. His voice breaking, he tells the woman to abandon this product and use her creativity to think of a better way to help poor families, because this idea will only have the opposite effect. The camera then reveals that the show's most abrasive and condescending Dragon, Kevin O'Leary, has tears streaming down his face.