The streaming era makes watching anything more complicated, and the 2022 Olympic Winter Games in Beijing are no exception. In the old days, you could flip through your cable TV guide and tune in to the right channel. You can still do that if you haven’t cut the cord—or have an antenna. But now, with NBC and its parent companies operating various streaming apps and social-media channels, you can see a lot more, both live and on demand—if you know where to look.