The Vanity Card at the end of the first episode (the producer has added a long text, visible for only a second, at the end of every episode, called a "vanity card") starts with "Thank you for videotaping "Dharma & Greg" and freeze-framing on my vanity card." Near the end, it says "I believe that when ABC reads this, I'm gonna be in biiiig trouble."
Not only did the producer add a vanity card at the end of episode one, but at the end of every episode (visible for about 2 seconds, readable when freeze-framed). The main text included various "beliefs" of the producer, as well as various outlooks on life. One in particular simply read "All work and no play makes Chuck a dull boy" over and over, except for the very middle of the screen, where it says "If you have stuck with this and read this far you are an exceptional person". Another said "the meaning of life might be "Sit, UBU, sit"".
Actors Alan Rachins and Mitchell Ryan, who play the respective fathers of the titular characters, have both played attorneys at Los Angeles law firms that employed an attorney played by Amanda Donohoe. Alan Rachins starred in all 8 seasons of the TV series "L.A. Law" (1986-1994), which also starred Donohoe for seasons 5-6. Mitchell Ryan appeared in the Jim Carrey film 'Liar, Liar' (1997). Additionally, Mitchell Ryan guest starred in an episode of "L.A. Law." Both actors also appeared in episodes of The Golden Girls (1985), playing men who dated Blanche Devereaux.