David Hasselhoff (NBC's "America's Got Talent") -- who starred in the popular lead role as Michael Knight for four seasons during the original series -- returns as the same character in a special guest-star appearance.We evidently received this release yesterday & somehow it went into the wrong e-mail box. Apologies for the delay. According to new KNIGHT RIDER star Justin Bruening, he's already filmed his sequences with Hasselhoff. This per a brief interview that appeared on G4's "Attack of the Show" last night. So, there you have it.