Originally posted by David A:
I'm not sure that one counts.
Unless I'm mistaken, his shirt didn't have Futurama on it when that episode first aired. That was added in after Futurama aired.
That's interesting, I've never heard mention of that before (I didn't catch that episode first-run). The snpp capsule doesn't mention it either.
I'll get the pictures up in a bit.
edit: Here be the references.
Futurama on SimpsonsTreehouse of Horror IX (AABF01) - Halloween credit: David "watch Futurama" Cohen
Halloween CreditMayored to the Mob (AABF05) - Uter wears a Futurama t-shirt at the convention
Uter's T-shirtMissionary: Impossible (BABF11) - Bender appears in the pledge drive at the end.
Bender at Pledge DriveHOMR (BABF22) - Fry appears in the couch gag.
Fry in Couch GagBart vs. Lisa vs. 3rd Grade (DABF20) - Bender is in Bart's hallucination.
Bender at a DeskBender in the CircleI, (Annoyed Grunt)-Bot (FABF04) - Bender's name is among the tapes of robot battles
Bender's Name on a TapeMy Big Fat Geek Wedding (FABF12) - Milhouse has a Bender doll and MG draws a picture of Fry at the convention
Milhouse's Bender DollMatt Groening's Fry SketchCatch 'Em If You Can (FABF14) - Futurama poster in background at video store
Futurama PosterFraudcast News (FABF18) - Squeaky voiced teen yells "Why did they cancel Futurama?" before jumping off the cliff
JumperFuture-Drama (GABF12) - In addition to the name, this episode has John DiMaggio guest-voicing as Bender, appearing in a car with future Bart and Homer
Bender in the carBender after being thrown outSimpsons on FuturamaSpace Pilot 3000 (1ACV01) - Blinky the fish appears in the ocean while Fry is in the transport tube
BlinkyMy Three Suns (1ACV07) - One of Bender's medals sports a simple drawing of Homer Simpson's head
Bender's medalA Big Piece of Garbage (1ACV08) - Bender eats the shorts from a Bart Simpson doll and says "MMMMmmm, shorts" in a Homer-esque manner
Bart Doll PileBender Eating ShortsHell Is Other Robots (1ACV09) - A heart carved in the abandoned amusement park contains the initials HS and MB (Homer Simpson and Marge Bouvier)
HS + MB (small, but you get the idea of where in the episode it is)
Mars University (1ACV11) - A Homer and a Bart doll are seen in the background during Fry's university flashback
Homer and Bart Dolls]Mars University (1ACV11) - A pair of legs that look like they may belong to Bart Simpson are visible behind Fry in a classroom scene, but a later shot show them to belong to an unrelated character. This is most likely not a reference, but included for completeness.
Bart style legs...But not belonging to himFry & the Slurm Factory (1ACV13) - The opening cartoon is taken from the Ullman-era Simpsons shorts.
Ullman-era SimpsonsWhy Must I Be A Crustacean in Love? (2ACV05) - The opening slogan reads "From the network that brought you "The Simpsons""
Opening SloganThe Luck of the Fryrish (3ACV04) - A Bart head is on a shelf in the background when Bender tries to open the Ronco vault
Head on a ShelfLeela's Homeworld (4ACV02) - Part of the balloon is made out of an old Bart Simpson balloon
Sewer BalloonThat's all I have, if anyone sees any mistakes or knows of any that I missed, let me know.
Edit: Added Future-Drama