knight rider online

just watched Knight Of The Living dead again ( yes i was up at 6.30 uk time watching it lol) and at the end when charles and torres are talking charles says only three nureal networks that support kitts files, KI3T, the back up and KARR

When Charles says the backup is he talking about TOS KITT or something else?

Something else. They have a backup neural AI, much like KITT itself, in case the original ever was permanently damaged.