Hey, so I browsed a little and these are my findings:
1080p: http://youtu.be/KvpbQlQwl0A?t=30s
720p: http://youtu.be/bx_LWm6_6tA?t=3m16s http://youtu.be/bx_LWm6_6tA?t=6m17s
720p: http://youtu.be/Kwen2OoXLs0?t=2m3s (might also wanna check 3:18-3:25, 5:00-5:09, 5:16-5:18)
This one's only 480p: http://youtu.be/LYZZWGl6vbA?t=2m18s
Well, this one's only 480p, too: http://youtu.be/jQuEOUzA9P8 (for example at 00:08:55)
And finally this one's 720p: http://youtu.be/LYZZWGl6vbA?t=2m18s
 
Hope I helped.