Even with Direct TV it’s very difficult to find events to watch..............
If you can download the NBC Sports App you can watch event replays anytime.
You can also go to nbcolympics.com and watch the events live or archived in their entirety. It’s not the TV feed so you don’t get all the syrupy crap. Unfortunately they have some commercials though. I’ve been able to watch the events I want for the last four Olympics without spending one second on the TV network.