YouTube
If you want to get an idea what you'll see at a show or a live stream, YouTube is a good place to start. Rick posts highlights from past gigs and covers of some of his favorite songs, and has some instructional and explainer videos on how the loop station works.
Rick also occasionally posts some more visually interesting video treatments of songs from the studio, like this one which features a peek "inside" the looper.
Live Streams
In addition to the video content indicated above, you can also come to YouTube to catch some of Rick's live shows in progress! So subscribe and if you're not able to make it out let Rick bring the music to you!