So that's how it was made? I really liked the effect.
After all this decades of Star Trek content and information I somehow never saw something about how the special effects were made. They were always quite convincing to me.
These scenes are actually clipped from Reading Rainbow S06E01 "The Bionic Bunny Show" in which LeVar describes the process of making a television show. They show the transporter effect starting at 9:30.
Exactly what I was just about to say. This episode was a big deal when it happened because I had been watching Reading Rainbow for years and loved to see LeVar on TNG. That's a never forget crossover episode right there