Looks like some people beat me to the list of jobs, but I'm not discouraged. I have a few extras for that list, but I'll put it at the end. I also have a more complete list of jobs he's had and didn't mention, but it's probably not exhaustive. (It also wasn't as hard as for Gump Roast, but I'll take it!)
Comments: I thought it was quite good, but I didn't get to watch it as it aired so I accidentally learned the ending by stupidly skimming the newsgroup before I watched it. Oh well. I wouldn't have been surprised, but I thought Homer and Marge mentioning it at the end was a little overkill. Also, I was a little disappointed in the opening and closing...no blackboard, recycled couch, and nothing fun for the credits (consider the seasons 11 and 12 finales, which both had actual full-screen credits with Alf Clausen fun!)...oh well. Maybe they didn't expect that one to close out the season. A few things I scribbled down as well...hooray for killing off the screamapillar, I'm glad Maggie is still smart, and Superintendent Chalmers: Now More than Ever! In general, the show seems to be becoming more realistic (like the early seasons), so that's good...and it seems to be getting better written, too. Hooray! This ep merits an A, I think, especially for the job list!
Previous episode references: riots: The Cartridge Family (5F01) Homer taking the law into his own hands: Homer the Vigilante (1F09) Heat wave: Bart of Darkness (1F22, I think) opportunity for Homer to be a hero at the Kwik-E-Mart (and taking it this time!): Krusty Gets Busted (7G12) Dragnet music: Marge on the Lam (1F03) 636 area code: A Tale of Two Springfields (BABF20) Radar Love played: Bart on the Road (3F17) Homer in trouble with Fat Tony: Mayored to the Mob (AABF05) Johnny Tight-Lips: Insane Clown Poppy (BABF17) Screamapillar, now the screamafly or whatever you could call it: The Frying Game (DABF16)
Other references I didn't see elsewhere: Dragnet, of course Happy Days (the Fonz) Fat Albert the other student (who is that?) CNN: their motto, (you can depend on CNN) Now More Than Ever
Goof, sort of: Bart's room isn't across from Lisa's! I guess the house (especially the upstairs) can change around, but it could have worked otherwise. Also, going by the usual layout of Lisa's room, where is her BED in the scene where Homer finds Jimbo's hat?
DYN: Homer's list of jobs didn't include anything from season 1, unless you count the generic "power plant worker"? Homer conspicuously left out "Vigilante" as one of his jobs?
Now a list of other jobs Homer could have listed...some are volunteer positions and stuff...oh well...also, I didn't count any from Treehouses of Horror (such as gravedigger) since they're non-canonical. Ditto anything in the Spin-Off Showcase, Behind the Laughter...and these are in approximate order of airing
Gulp-N-Blow employee in I Married Marge (8F10) Car consultant in Oh Brother, Where Art Thou? (7F16) Bowling alley employee (his dream job!) in And Maggie Makes Three (2F10)
Monorail conductor in Marge vs. the Monorail (9F10) Big Brother (not really a job, but neither is homophobe) in Brother from the Same Planet (9F12) Union president (related to snpp, but so is 3F14) in Last Exit to Springfield (9F15) Barbershop singer in Homer's Barbershop Quartet (9F21) Blackjack dealer in $pringfield (Or, How I Learned to Stop Worrying and Love Legalized Gambling) (1F08) Vigilante in Homer the Vigilante (1F09) Adult education teacher in Secrets of a Successful Marriage (1F20) Tonic salesman in Grampa vs. Sexual Inadequacy (2F07) "Pilot" in Fear of Flying (2F08) - sort of fake, but hey, funny Town crier in Lisa the Iconoclast (3F13) Cannonball guy in Homerpalooza (3F21) Scorpio employee in You Only Move Twice (3F23) Football coach in Bart Star (5F03) - volunteer again, but close enough Junior Vice President of Compuglobalhypermeganet in Das Bus (5F11) Navy reserve officer in Simpson Tide (3G04) IRS "agent" in The Trouble With Trillions (5F14) Sort of fake celebrity in Homer to the Max (AABF09) Osaka Seafood Concern employee in Thirty Minutes over Tokyo (AABF20) Springfield Squares panelist in Hello Gutter, Hello Fadder (BABF02) Bike gang leader in Take My Wife, Sleaze (BABF05) Mr. X in The Computer Wore Menace Shoes (CABF02) Day care center runner in Children of a Lesser Clod (CABF16) Bartender in Homer the Moe (CABF20)
and finally, the list of jobs he did say...some of them I listed a few episodes for, since they count doubly
You know, I've had a lot of jobs... Boxer: The Homer They Fall (4F03) Mascot: Dancin' Homer (7F05) Astronaut: Deep Space Homer (1F13) Imitation Krusty: Homie the Clown (2F12) Baby-proofer: Bye Bye Nerdie (CABF11) Trucker: Maximum Homerdrive (AABF13) Hippie: D'oh-in' in the Wind (AABF02) Plow driver: Mr. Plow (9F07) and Skinner's Sense of Snow (CABF06) Food critic: Guess Who's Coming to Criticize Dinner? (AABF21) Conceptual artist: Mom and Pop Art (AABF15) Grease salesman: Lard of the Dance (5F20) Carny: Bart Carny (5F08) Mayor: A Tale of Two Springfields (BABF20) Grifter: The Great Money Caper (CABF03) Bodyguard for the mayor: Mayored to the Mob (AABF05) Country-western manager: Colonel Homer (8F19) Garbage commissioner: Trash of the Titans (5F09) Mountain climber: King of the Hill (5F16) (the episode right after 5F09)
Farmer: E-I-E-I-(Annoyed Grunt) (AABF19) Inventor: The Wizard of Evergreen Terrace (5F21) Smithers: Homer the Smithers (3F14) Poochie: The Itchy & Scratchy & Poochie Show (4F12) and Treehouse of Horror IX (AABF01) (I wonder how they got Poochie's voice again!) Celebrity assistant: When You Dish upon a Star (5F19), to some extent Beyond Blunderdome (AABF23), and maybe more Power plant worker: You'd think all, but oh well...I'm certainly not going to pick through and find each one he was definitely at the plant in Fortune cookie writer: A Hunka Hunka Burns in Love (CABF18) Beer baron: Homer vs. the Eighteenth Amendment (4F15) Kwik-E-Mart clerk: Lisa's Pony (8F06) Homophobe: Homer's Phobia (4F11) and Missionary: Missionary: Impossible (BABF11)
That's all. Good night!