So I have cellular internet but I'm highly considering getting a apple TV for my streaming stuff, I have 900GB a month to spend, and usually get close or right at cap the day it resets. My worry is sometimes my connection is really good and could support 4k streaming but I don't want it too. So I'm wondering if the HD version of Apple TV is still supported or if there is a setting for it not to force 4k. Btw I use Roku now, so I'm blind buying (Should I but one), so figured I'd ask some questions. Thanks!