How to watch the Indy 500

[jimbobs]

I’ve seen this question asked on other threads, but I’ve yet to find an answer so please forgive me if this has been covered elsewhere.

I’d like to legally watch the Indy 500 (live, preferably but highlights will do at a pinch). I believe that BT Sport have been covering the championship, but I don’t have a subscription.

I’ve got the following at home:
Virgin cable tv
A Roku streaming stick (with Amazon video & Now TV on it)
Laptop & iPad

I don’t mind pay-per-view and I’d think about paying for a month’s subscription if it wasn’t exorbitant and easily cancellable.

Does anyone know how what my options are?