Peter Cullen did the voice of K.A.R.R. in this episode. He is well known by some fans as the Voice of Optimus Prime, which is a robot that changes into a vehicle, in both the Transformers Cartoon series and the Transformers movies. He also did the voice of the first K.A.R.R. in the original Knight Rider Series.
Peter Cullen reprises his role as the voice of KARR from the original series episode Trust Doesn't Rust (1982).
At the time of the original airing, the website that KITT uploaded himself to (www.michaelknight.org) redirected you to NBC.com.
The video game they are playing is Halo.