The first major event of 2017 is the IMSA Daytona 24 hours on Saturday 28th January.
For those of us outside the USA, this is available to watch on the IMSA web-site and Motors TV are broadcasting a proportion of the race. It is possibly elsewhere.
Qualifying (held on Thursday 26th Jan) is available to watch here.
http://imsatv.imsa.com/video/012017/2017-rolex-24-daytona-qualifyingRace start is Saturday 28th Jan at 19:30hrs GMT, although the broadcast will commence at 19:00hrs. Return to IMSA.TV to view. More details can be found here.
http://sportscarchampionship.imsa.com/events/rolex-24-daytona-0