Before I start changing the settings I've always used successfully in the past (basically MP4, 1920x1080, 25 fps) thought I'd check here. Has anyone else found that YT is no longer playing videos uploaded at HD in HD quality? Nor offering the option in settings?
Edit: I should have added that I was using my PC browser, Firefox (latest). I've since just tried the same video from my iPad, which uses the Safari browser - and it's now playing in HD. So I suppose it's a Firefox issue? I'll post in the Fx forum.