In USA?
Coverage of equestrian events is provided by USA Network, Oxygen, NBC and UniversalHD.
The broadcast schedule is available here.

To get local times and channel numbers, click on "Click Here to Localize"
at the top of the schedule, above the row of dates.

In Canada?
Full coverage of equestrian events is provided by CBC's BOLD Network
(formerly Country Canada). Their broadcast schedules are available here.

BOLD TV is available on these networks in Canada:
Rogers 277; Cogeco 166; Shaw 96; Videotron 106; ExpressVu 641; Star Choice 512