I think my favorite bit from the Diver model isn't represented here. It's the tattoo on his human form that reads "perked up anchor." Oh, Japan!
Farscape Geekwatch! S02E06: Picture if You Will features the return of Maldis. We won't see him again (though, without looking it up, he seems like a sure bet for a comic appearance) but he'll be mentioned a few more times. I hated the character the first time through, seemed too mystical for my taste, though really in retrospect he's not much different than Q or Trellain or any other energy being. The geekiest bit in the episode is when Crichton criticizes Maldis for not reading the supervillain's handbook. Not specific, but geeky none-the-less. (specific non-geek references include The Price Is Right, The Sound of Music, and Magical Mystery Tour.)
S02E08: Home on the Remains (ugh!) is another weaker episode, again with a Chiana focus. Good geek cred, though, with John shouting "shazam!" (Captain Marvel, natch. From memory, Soloman, Hercules, Atlas, Zeus, Achilles, Mercury. Yeah, I like my Captain Marvel.) John also tells the bad guy "No more Captain Kirk chitchat." Other references include Dominoes pizza, Jenny Craig's weight loss ads, and the Donner party.
I'll end with S02E09: Out of their Minds, a hilarious episode with body swapping all around. No geek references here, I'm afraid. No real references of any kind that I noticed, outside from Crichton calling Rygel (in his own body none-the-less) Einstein and referring to his body smacking his ego (residing in Aeryn's body) as a Three Stooges routine. I'll forgive much, though, since John goes ahead and takes advantage of his time in Aeryn's body to feel up her boobs, then dance around with her shirt open.
Farscape: The Complete Series is available for purchase on Amazon, and unless you're homeless you should own it.