Gavin S. Yancey

Which list do you mean?

about 425 (I just counted, but I might have miscounted by a couple of videos).

Yes. This is all the videos that appeared until I reached the bottom of the page.

I can't hide watched videos. That part of the bottom bar doesn't show on my iPhone, even in landscape mode (maybe it's not wide enough?)

The setting does show up there. Performance significantly increases when I turn off watched videos. The page loads in about 15 seconds, down from 40-or-so, and the browser doesn't crash...

You might want to look into merging some of the work from [kbillings/yt-sanegrid](https://github.com/kbillings/yt-sanegrid). It looks like he's already implemented number-of-video limits and a way to clear the watched cache.