Pretty fun. On Homer's plot, I liked the initial way of hiding the washing machine, though the rest of the found presents was a little hard to swallow. Act four apology trip was sweet but the whole bit seemed a bit dumb - and the four-act structure just does not work, as we see here. There were a number of fun one-liners too. I also liked Lisa's plot with the old folks, just the right length for the point it was making.
DYN: ...WILHELM SCREAM? There were several of them in the war game, a Simpsons first! ...this new character, Ricardo "La" Bomba, is never named and dispatched in a very "screw you with this fan-made character stuff" way - and twice fails to deliver his catchphrase?
Previous episode stuff 1F07, CABF18: Fortune cookies BABF21: Horoscopes in that episode seem to be acted on similarly AABF11/BABF06: aerial shot of Homer swerving like that 7F06: I'm gonna make it! I'm gonna make it! (Plus bonus of falling down a cliff) 8F17: Big lotto winnings etc. 5F05: Buried bones for Lisa's benefit
Goofs A big widescreen TV like that is unlikely to have been made without a digital (ATSC) tuner. Not really a goof is that it stopped working "10 minutes ago" - during the real analog shutoff, many channels stopped their analog signal at about 10 in the morning. The novelty check for a million dollars said "1,000,000." - using a decimal point but no cents. Right after Homer breaks his arm, his right hand turns into a left hand.
Other stuff
Willy Wonka and the Chocolate Factory: Homer and Bart burping their way through the zero-G plane quite a lot like Charlie and Joe doing the same to get down the fizzy lifting drink tower.
Maybe I missed something - why does Marge ask Homer for foregiveness after she finds out the winning lottery ticket was bought when she was angry about the botched toast?
It's not really a reference, but I must mention that on the DVD of one of the Futurama movies (Wild Green Yonder?), there is a goofy featurette about a trip Matt Groening, David X Cohen, and Matt's son made with a zero-G plane company. It does look a lot like how it was shown here.