i'd check out the nba streaming package. it works on apple tv. http/www.nba.com/leaguepass/
however, i have no idea if it is available or not in iceland. need to read the fine print or contact them to check.
as for golf channel i am not sure there. it comes on a bunch of different channels and i don't think they have a streaming package. don't know what is available there either such as Sling TV or one of the other streaming cable packages that would offer some of the needed channels.