When I open youtube to watch any video, and I am connected to the WiFi in the house, I get all the quality options available to me: 144p, 240p, 360p, 480p, 720p, 1080p, and occasionally original (usually reserved for 4K resolutions?) However, when I use my phone's 3G/4G and wirelessly tether that to linux, I do not get all 6-7 quality choices. 144p, 480p, and 1080p are missing. speedtest.net shows tethering 4G to my computer shows a 3-8 Mbps down with ~70ms latency. the WiFi in the house is CenturyLink DSL, and can get as fast as 1.5Mbps with latency ~50ms at best, it can sometimes get very slow and I am forced to switch to tethering my phone's 3G/4G. Also, it is worth noting that the 360p quality appears more compressed, The amount of "boxiness" (MPEG reduction) is annoyingly high. (poor quality) While the phone is in 3G, I can't even watch 720p quality, the lowest quality that allows one to make out a faces in the video. It does not appear to be Chrome, the browser I'm using or flash video, as it is also true with the HTML5 player.