There are a lot of different providers streaming from the Olympics.
Confirmed and at the schedule today for day 1 at the Olympics is Danish national broadcast DR2 with full streamning from the first competition day Saturday 24 July, 10 am CET (local Japan time 5 pm).
For the foreign readers NBC Sport (America), ARD (Germany) and Eurosport (World wide) will be available.
H2R calendar will of course be updated when new informations or streaming comes up.