In a sarcastic mock of television fundraising (in which the cause or recipient displays the accretion of their donations "on screen"), when the Reverend and his wife are appealing for donations for their "Defense Fund" at the end of the episode, the figures at the bottom of the screen proceed upward in the following ridiculous sequence: $000.00... $64.00... $1,564.00... $7,564.00... $42,564.00... $142,564.00.
This episode was the first filmed for season four (and some TV listings actually had it listed for airing on 9/25/1987), but NBC wanted to start the season with Crockett in jail in Contempt of Court (1987).
IGG (the abbreviation for Proverb's "In God's Glory" ministry) is also an abbreviation used for "Ill-Gotten Gains", the term used for monetary or other personal gains obtained through illicit means.
Crocket asks Tubbs for a quarter. Starting in the first season this was an occasional meme on the show. It had been forgotten for a couple of seasons and revived in this episode. Perhaps as a way of catching up he does it twice this time.
In the epilogue, when Rev and Mrs. Proverb are making their "honest and heartfelt" appeal, the song sung by Mrs. Proverb is the last stanza of the song "Together As One," Written by Michael H. Sweet, and recorded by the band Stryper, on the album Soldiers Under Command (1985). While uncredited, given actress Anita Morris' career on Broadway, earning her a Tony nomination, it might seem safe to assume she sang the part herself.