When it is time you can watch the parade from the NBC live stream web portal here:

you can also watch the show from the following channels
Hulu TV, and YouTube
Cozi – NY
Broadcast 4.2 Spectrum 1245, Optimum 109/688, Fios 460, RCN 28, Xfinity 158/248
You can Also Watch on our YouTube Channel
https://www.youtube.com/user/NYCStPatricksParade