With your purchase of the Phish @ MSG Sphere Webcasts you can watch LIVE, watch a replay (as many times as you want) for 1 week until April 28th and/or watch on demand after that.
After the replay window ends a Video-on-Demand link will be added to your Stash, available for a limited time. Once you start the VOD you can watch for 48-hours before your link expires.