This happens because Knight Rider has been released in multiple versions:
Ready to watch KITT fight crime in perfect Greek? Follow this checklist:
It sounds like you're looking for for the classic TV series Knight Rider (starring David Hasselhoff as Michael Knight and KITT).
Be careful when searching; many sites list the 2008 Knight Rider sequel alongside the 1982 original. Ensure you are downloading files for the David Hasselhoff era if that is your goal.