wa....10mbps is smooth for HD
yes...u  installed a correct xbmc for pc...
xbmc remote i mention if u want to remote your pc or android box/tv from your android device example your phone,,,or tablet
u must install addon for video channel or navi-x on program category
video addon noobroom,,,mash up,,,,1channel...
program addon navi-x

for android tv himedia i think u can go here himedia Q10
himediaQ10 best if u want to connect to your av system...
i just  use this only Quad Core Mini PC MK802 IV

after u install addon u can explore alot ...

apple tv i dont experience ...go to android box/tv 

good for first user XBMC