It's true that the two programs want different kinds of videos, but I wouldn't read into this too much. Both claim that they care more about the founders than a

It's true that the two programs want different kinds of videos, but I wouldn't read into this too much. Both claim that they care more about the founders than about the idea; the reason they ask so much about the idea is that they want you to show that you're capable of generating and fleshing out a good idea. I imagine that watching hundreds of short videos per cycle is very exhausting, and over time both groups became especially frustrated with a particular category of video. For YC, this category was "overproduced demo hype videos." For TechStars, it was "three guys muttering into the camera." That they decided to disallow those categories is, I think, just a historical happenstance.