knight rider online

Hello to everyone to the forum,I am a new member and I'm still a fan of Knightrider.
GREETINGS FROM MALTA.
This week I bought knight rider season three and I noticed that the dvd does not have subtitles.Is this every one problem or is just a fault in my DVDs.
I was watching the episodes and I noticed this if I'm not mistaken in Lost knight.
How is Kitt going to get in the semi.This looks like a normal trailer.
What do you think?

If you are talking about the back door that looks like a normal trailer door its a disguise you will see when the door opens that its just a ramp they are not doors