The disclaimer was put at the front of the episode as a joke, but eventually the crew were told to leave it in as a legal statement, and it stayed in all 6 episodes.
Originally, the script called for Jay & Silent Bob to be drug dealers, just like in the movie. But after the network got wind of it, they shut it down and told them they had to be "mischief makers."
The episode's full title is "The Pilot" Or "Leonardo Leonardo Returns And Dante Has An Important Decision To Make." The episode was originally going to play 1st, then it got switched to 5th after a test audience rejected it.
When Randal is ringing the old lady up it came up to 37 cents which is a shout out to the movie Clerks. When Dante found out how many BJs his girl gave.
(Dante and Randal are walking up a wall in the style of the Old Batman TV Show)
Randal: We're almost there.
(Potted plant shatters on the surface they're walking on.)
Dante: Why are we walking like this?
(Camera turns to reveal they are not walking up, but from right to left.)
Leonardo Leonardo: Do you like my desk? I built it myself. And I have all these pieces left.
Leonardo Leonardo: I see... bring this Quick Stop to me.
Plug: Sir, it's a store.
Leonardo Leonardo: Bring it!
Plug: How about...the two kids that run it instead?
Leonardo Leonardo: Very well... for now.
When Leonardo starts to show the clerks the Dome, his hand is behind left hand is behind his back. Next shot we see his left hand has jumped out in front of him and he pushes the red button. But then just as quickly, it goes right back behind his back.